Cleanup MaxFieldLength for UI text fields. (#676)

* Cleanup MaxFieldLength for Ui text fields.

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

* Cleanup builder usage.

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

* Code cleanup.

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/artifacts/smtable/SoftwareModuleAddUpdateWindow.java

@@ -20,7 +20,6 @@ import org.eclipse.hawkbit.repository.model.SoftwareModuleType;
 import org.eclipse.hawkbit.ui.artifacts.event.SoftwareModuleEvent;
 import org.eclipse.hawkbit.ui.common.CommonDialogWindow;
 import org.eclipse.hawkbit.ui.common.CommonDialogWindow.SaveDialogCloseListener;
-import org.eclipse.hawkbit.ui.common.EmptyStringValidator;
 import org.eclipse.hawkbit.ui.common.SoftwareModuleTypeBeanQuery;
 import org.eclipse.hawkbit.ui.common.builder.TextAreaBuilder;
 import org.eclipse.hawkbit.ui.common.builder.TextFieldBuilder;
@@ -211,20 +210,19 @@ public class SoftwareModuleAddUpdateWindow extends CustomComponent {
 
     private void createRequiredComponents() {
 
-        nameTextField = createTextField("textfield.name", UIComponentIdProvider.SOFT_MODULE_NAME);
+        nameTextField = createTextField("textfield.name", UIComponentIdProvider.SOFT_MODULE_NAME,
-        nameTextField.addValidator(new EmptyStringValidator(i18n));
+                SoftwareModule.NAME_MAX_SIZE);
 
-        versionTextField = createTextField("textfield.version", UIComponentIdProvider.SOFT_MODULE_VERSION);
+        versionTextField = createTextField("textfield.version", UIComponentIdProvider.SOFT_MODULE_VERSION,
-        versionTextField.addValidator(new EmptyStringValidator(i18n));
+                SoftwareModule.VERSION_MAX_SIZE);
 
-        vendorTextField = createTextField("textfield.vendor", UIComponentIdProvider.SOFT_MODULE_VENDOR);
+        vendorTextField = new TextFieldBuilder(SoftwareModule.VENDOR_MAX_SIZE)
-        vendorTextField.setRequired(false);
+                .caption(i18n.getMessage("textfield.vendor")).id(UIComponentIdProvider.SOFT_MODULE_VENDOR)
-        vendorTextField.setNullRepresentation("");
-
-        descTextArea = new TextAreaBuilder().caption(i18n.getMessage("textfield.description")).style("text-area-style")
-                .prompt(i18n.getMessage("textfield.description")).id(UIComponentIdProvider.ADD_SW_MODULE_DESCRIPTION)
                 .buildTextComponent();
-        descTextArea.setNullRepresentation("");
+
+        descTextArea = new TextAreaBuilder(SoftwareModule.DESCRIPTION_MAX_SIZE)
+                .caption(i18n.getMessage("textfield.description")).style("text-area-style")
+                .id(UIComponentIdProvider.ADD_SW_MODULE_DESCRIPTION).buildTextComponent();
 
         typeComboBox = SPUIComponentProvider.getComboBox(i18n.getMessage("upload.swmodule.type"), "", null, null, true,
                 null, i18n.getMessage("upload.swmodule.type"));
@@ -234,9 +232,9 @@ public class SoftwareModuleAddUpdateWindow extends CustomComponent {
         typeComboBox.setImmediate(Boolean.TRUE);
     }
 
-    private TextField createTextField(final String in18Key, final String id) {
+    private TextField createTextField(final String in18Key, final String id, final int maxLength) {
-        return new TextFieldBuilder().caption(i18n.getMessage(in18Key)).required(true).prompt(i18n.getMessage(in18Key))
+        return new TextFieldBuilder(maxLength).caption(i18n.getMessage(in18Key)).required(true, i18n).id(id)
-                .immediate(true).id(id).buildTextComponent();
+                .buildTextComponent();
     }
 
     private void populateTypeNameCombo() {

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/artifacts/smtype/CreateUpdateSoftwareTypeLayout.java

@@ -20,7 +20,6 @@ import org.eclipse.hawkbit.ui.artifacts.event.SoftwareModuleTypeEvent;
 import org.eclipse.hawkbit.ui.artifacts.event.SoftwareModuleTypeEvent.SoftwareModuleTypeEnum;
 import org.eclipse.hawkbit.ui.colorpicker.ColorPickerConstants;
 import org.eclipse.hawkbit.ui.colorpicker.ColorPickerHelper;
-import org.eclipse.hawkbit.ui.common.EmptyStringValidator;
 import org.eclipse.hawkbit.ui.common.SoftwareModuleTypeBeanQuery;
 import org.eclipse.hawkbit.ui.common.builder.LabelBuilder;
 import org.eclipse.hawkbit.ui.common.builder.TextAreaBuilder;
@@ -101,15 +100,16 @@ public class CreateUpdateSoftwareTypeLayout extends CreateUpdateTypeLayout<Softw
 
         multiAssign = new LabelBuilder().name(multiAssignStr).buildLabel();
 
-        tagName = createTextField("textfield.name", SPUIDefinitions.TYPE_NAME, SPUIDefinitions.NEW_SOFTWARE_TYPE_NAME);
+        tagName = createTextField("textfield.name", SPUIDefinitions.TYPE_NAME, SPUIDefinitions.NEW_SOFTWARE_TYPE_NAME,
+                SoftwareModuleType.NAME_MAX_SIZE);
 
-        typeKey = createTextField("textfield.key", SPUIDefinitions.TYPE_KEY, SPUIDefinitions.NEW_SOFTWARE_TYPE_KEY);
+        typeKey = createTextField("textfield.key", SPUIDefinitions.TYPE_KEY, SPUIDefinitions.NEW_SOFTWARE_TYPE_KEY,
+                SoftwareModuleType.KEY_MAX_SIZE);
 
-        tagDesc = new TextAreaBuilder().caption(i18n.getMessage("textfield.description"))
+        tagDesc = new TextAreaBuilder(SoftwareModuleType.DESCRIPTION_MAX_SIZE)
+                .caption(i18n.getMessage("textfield.description"))
                 .styleName(ValoTheme.TEXTFIELD_TINY + " " + SPUIDefinitions.TYPE_DESC)
-                .prompt(i18n.getMessage("textfield.description")).immediate(true)
                 .id(SPUIDefinitions.NEW_SOFTWARE_TYPE_DESC).buildTextComponent();
-        tagDesc.setNullRepresentation("");
 
         singleMultiOptionGroup();
     }
@@ -127,10 +127,10 @@ public class CreateUpdateSoftwareTypeLayout extends CreateUpdateTypeLayout<Softw
         return ColorPickerHelper.rgbToColorConverter(ColorPickerConstants.DEFAULT_COLOR);
     }
 
-    private TextField createTextField(final String in18Key, final String styleName, final String id) {
+    private TextField createTextField(final String in18Key, final String styleName, final String id,
-        return new TextFieldBuilder().caption(i18n.getMessage(in18Key))
+            final int maxLength) {
-                .styleName(ValoTheme.TEXTFIELD_TINY + " " + styleName).required(true).prompt(i18n.getMessage(in18Key))
+        return new TextFieldBuilder(maxLength).caption(i18n.getMessage(in18Key))
-                .validator(new EmptyStringValidator(i18n)).immediate(true).id(id).buildTextComponent();
+                .styleName(ValoTheme.TEXTFIELD_TINY + " " + styleName).required(true, i18n).id(id).buildTextComponent();
     }
 
     @Override

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/artifacts/upload/UploadConfirmationWindow.java

@@ -264,7 +264,7 @@ public class UploadConfirmationWindow implements Button.ClickListener {
     }
 
     private static TextField createTextField(final String id) {
-        return new TextFieldBuilder().immediate(true).id(id).buildTextComponent();
+        return new TextFieldBuilder(64).id(id).buildTextComponent();
     }
 
     private void addFileNameLayout(final Item newItem, final String baseSoftwareModuleNameVersion,

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/common/AbstractMetadataPopupLayout.java

@@ -236,10 +236,8 @@ public abstract class AbstractMetadataPopupLayout<E extends NamedVersionedEntity
     }
 
     private TextField createKeyTextField() {
-        final TextField keyField = new TextFieldBuilder().caption(i18n.getMessage("textfield.key")).required(true)
+        final TextField keyField = new TextFieldBuilder(MetaData.KEY_MAX_SIZE).caption(i18n.getMessage("textfield.key"))
-                .prompt(i18n.getMessage("textfield.key")).immediate(true)
+                .required(true, i18n).id(UIComponentIdProvider.METADATA_KEY_FIELD_ID).buildTextComponent();
-                .id(UIComponentIdProvider.METADATA_KEY_FIELD_ID).maxLengthAllowed(MetaData.KEY_MAX_SIZE)
-                .validator(new EmptyStringValidator(i18n)).buildTextComponent();
         keyField.addTextChangeListener(this::onKeyChange);
         keyField.setTextChangeEventMode(TextChangeEventMode.EAGER);
         keyField.setWidth("100%");
@@ -247,11 +245,8 @@ public abstract class AbstractMetadataPopupLayout<E extends NamedVersionedEntity
     }
 
     private TextArea createValueTextField() {
-        valueTextArea = new TextAreaBuilder().caption(i18n.getMessage("textfield.value")).required(true)
+        valueTextArea = new TextAreaBuilder(MetaData.VALUE_MAX_SIZE).caption(i18n.getMessage("textfield.value"))
-                .validator(new EmptyStringValidator(i18n)).prompt(i18n.getMessage("textfield.value")).immediate(true)
+                .required(true, i18n).id(UIComponentIdProvider.METADATA_VALUE_ID).buildTextComponent();
-                .id(UIComponentIdProvider.METADATA_VALUE_ID).maxLengthAllowed(MetaData.VALUE_MAX_SIZE)
-                .buildTextComponent();
-        valueTextArea.setNullRepresentation("");
         valueTextArea.setSizeFull();
         valueTextArea.setHeight(100, Unit.PERCENTAGE);
         valueTextArea.addTextChangeListener(this::onValueChange);

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/common/EmptyStringValidator.java

@@ -23,18 +23,6 @@ public class EmptyStringValidator extends StringLengthValidator {
 
     private static final String MESSAGE_KEY = "validator.textfield.min.length";
 
-    private static final int TEXT_FIELD_DEFAULT_MAX_LENGTH = 64;
-
-    /**
-     * Constructor for EmptyStringValidator
-     * 
-     * @param i18n
-     *            {@link VaadinMessageSource}
-     */
-    public EmptyStringValidator(final VaadinMessageSource i18n) {
-        super(i18n.getMessage(MESSAGE_KEY), 1, TEXT_FIELD_DEFAULT_MAX_LENGTH, false);
-    }
-
     /**
      * Constructor for EmptyStringValidator
      * 
@@ -44,12 +32,12 @@ public class EmptyStringValidator extends StringLengthValidator {
      *            max length of the textfield
      */
     public EmptyStringValidator(final VaadinMessageSource i18n, final int maxLength) {
-        super(i18n.getMessage(MESSAGE_KEY), 1, maxLength, false);
+        super(i18n.getMessage(MESSAGE_KEY, maxLength), 1, maxLength, false);
     }
 
     @Override
-    public boolean isValid(final Object value) {
+    public boolean isValidValue(final String value) {
-        return super.isValid(value != null ? value.toString().trim() : null);
+        return super.isValidValue(value != null ? value.trim() : null);
     }
 
 }

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/common/builder/AbstractTextFieldBuilder.java

@@ -11,6 +11,8 @@ package org.eclipse.hawkbit.ui.common.builder;
 import java.util.LinkedList;
 import java.util.List;
 
+import org.eclipse.hawkbit.ui.common.EmptyStringValidator;
+import org.eclipse.hawkbit.ui.utils.VaadinMessageSource;
 import org.springframework.util.StringUtils;
 
 import com.vaadin.data.Validator;
@@ -19,31 +21,39 @@ import com.vaadin.ui.AbstractTextField;
 /**
  * Abstract Text field builder.
  * 
+ * @param <T>
+ *            type of the builder
  * @param <E>
- *            the concrete text component
+ *            the text component
+ *
  */
-public abstract class AbstractTextFieldBuilder<E extends AbstractTextField> {
+public abstract class AbstractTextFieldBuilder<T, E extends AbstractTextField> {
 
     private String caption;
     private String style;
     private String styleName;
     private String prompt;
     private String id;
-    private boolean immediate;
+    private boolean immediate = true;
     private boolean required;
     private boolean readOnly;
     private boolean enabled = true;
-    private int maxLengthAllowed;
+    private final int maxLengthAllowed;
     private final List<Validator> validators = new LinkedList<>();
 
+    protected AbstractTextFieldBuilder(final int maxLengthAllowed) {
+        this.maxLengthAllowed = maxLengthAllowed;
+    }
+
     /**
      * @param caption
      *            the caption to set
      * @return the builder
      */
-    public AbstractTextFieldBuilder<E> caption(final String caption) {
+    public T caption(final String caption) {
         this.caption = caption;
-        return this;
+        this.prompt = caption;
+        return (T) this;
     }
 
     /**
@@ -51,9 +61,9 @@ public abstract class AbstractTextFieldBuilder<E extends AbstractTextField> {
      *            the style to set * @return the builder
      * @return the builder
      */
-    public AbstractTextFieldBuilder<E> style(final String style) {
+    public T style(final String style) {
         this.style = style;
-        return this;
+        return (T) this;
     }
 
     /**
@@ -61,19 +71,24 @@ public abstract class AbstractTextFieldBuilder<E extends AbstractTextField> {
      *            the styleName to set
      * @return the builder
      */
-    public AbstractTextFieldBuilder<E> styleName(final String styleName) {
+    public T styleName(final String styleName) {
         this.styleName = styleName;
-        return this;
+        return (T) this;
     }
 
     /**
      * @param required
      *            the required to set
+     * @param i18n
+     *            to translate error message
      * @return the builder
      */
-    public AbstractTextFieldBuilder<E> required(final boolean required) {
+    public T required(final boolean required, final VaadinMessageSource i18n) {
         this.required = required;
-        return this;
+        if (required) {
+            validators.add(new EmptyStringValidator(i18n, maxLengthAllowed));
+        }
+        return (T) this;
     }
 
     /**
@@ -81,9 +96,9 @@ public abstract class AbstractTextFieldBuilder<E extends AbstractTextField> {
      *            the readOnly to set
      * @return the builder
      */
-    public AbstractTextFieldBuilder<E> readOnly(final boolean readOnly) {
+    public T readOnly(final boolean readOnly) {
         this.readOnly = readOnly;
-        return this;
+        return (T) this;
     }
 
     /**
@@ -91,9 +106,9 @@ public abstract class AbstractTextFieldBuilder<E extends AbstractTextField> {
      *            the enabled to set
      * @return the builder
      */
-    public AbstractTextFieldBuilder<E> enabled(final boolean enabled) {
+    public T enabled(final boolean enabled) {
         this.enabled = enabled;
-        return this;
+        return (T) this;
     }
 
     /**
@@ -101,9 +116,9 @@ public abstract class AbstractTextFieldBuilder<E extends AbstractTextField> {
      *            the prompt to set
      * @return the builder
      */
-    public AbstractTextFieldBuilder<E> prompt(final String prompt) {
+    public T prompt(final String prompt) {
         this.prompt = prompt;
-        return this;
+        return (T) this;
     }
 
     /**
@@ -111,19 +126,9 @@ public abstract class AbstractTextFieldBuilder<E extends AbstractTextField> {
      *            the immediate to set
      * @return the builder
      */
-    public AbstractTextFieldBuilder<E> immediate(final boolean immediate) {
+    public T immediate(final boolean immediate) {
         this.immediate = immediate;
-        return this;
+        return (T) this;
-    }
-
-    /**
-     * @param maxLengthAllowed
-     *            the maxLengthAllowed to set
-     * @return the builder
-     */
-    public AbstractTextFieldBuilder<E> maxLengthAllowed(final int maxLengthAllowed) {
-        this.maxLengthAllowed = maxLengthAllowed;
-        return this;
     }
 
     /**
@@ -131,9 +136,9 @@ public abstract class AbstractTextFieldBuilder<E extends AbstractTextField> {
      *            the id to set
      * @return the builder
      */
-    public AbstractTextFieldBuilder<E> id(final String id) {
+    public T id(final String id) {
         this.id = id;
-        return this;
+        return (T) this;
     }
 
     /**
@@ -142,9 +147,9 @@ public abstract class AbstractTextFieldBuilder<E extends AbstractTextField> {
      *            the validator to set for this field
      * @return the builder
      */
-    public AbstractTextFieldBuilder<E> validator(final Validator validator) {
+    public T validator(final Validator validator) {
         validators.add(validator);
-        return this;
+        return (T) this;
     }
 
     /**
@@ -187,6 +192,8 @@ public abstract class AbstractTextFieldBuilder<E extends AbstractTextField> {
             validators.forEach(textComponent::addValidator);
         }
 
+        textComponent.setNullRepresentation("");
+
         return textComponent;
     }
 

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/common/builder/TextAreaBuilder.java

@@ -15,15 +15,16 @@ import com.vaadin.ui.themes.ValoTheme;
  * TextArea builder.
  *
  */
-public class TextAreaBuilder extends AbstractTextFieldBuilder<TextArea> {
+public class TextAreaBuilder extends AbstractTextFieldBuilder<TextAreaBuilder, TextArea> {
-
-    private static final int TEXT_AREA_DEFAULT_MAX_LENGTH = 512;
 
     /**
      * Constructor.
+     * 
+     * @param maxLengthAllowed
+     *            for the text area
      */
-    public TextAreaBuilder() {
+    public TextAreaBuilder(final int maxLengthAllowed) {
-        maxLengthAllowed(TEXT_AREA_DEFAULT_MAX_LENGTH);
+        super(maxLengthAllowed);
         styleName(ValoTheme.TEXTAREA_SMALL);
     }
 

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/common/builder/TextFieldBuilder.java

@@ -18,24 +18,17 @@ import com.vaadin.ui.themes.ValoTheme;
  * Textfield builder.
  *
  */
-public class TextFieldBuilder extends AbstractTextFieldBuilder<TextField> {
+public class TextFieldBuilder extends AbstractTextFieldBuilder<TextFieldBuilder, TextField> {
-
-    /**
-     * Constructor.
-     */
-    public TextFieldBuilder() {
-        this(null);
-    }
 
     /**
      * Constructor.
      * 
-     * @param id
+     * @param maxLengthAllowed
-     *            the id
+     *            as mandatory field
      */
-    public TextFieldBuilder(final String id) {
+    public TextFieldBuilder(final int maxLengthAllowed) {
+        super(maxLengthAllowed);
         styleName(ValoTheme.TEXTAREA_TINY);
-        id(id);
     }
 
     /**

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/common/grid/AbstractGridHeader.java

@@ -73,7 +73,8 @@ public abstract class AbstractGridHeader extends VerticalLayout {
     private void createComponents() {
         headerCaptionLayout = getHeaderCaptionLayout();
         if (isRollout()) {
-            searchField = new TextFieldBuilder(getSearchBoxId()).createSearchField(event -> searchBy(event.getText()));
+            searchField = new TextFieldBuilder(64).id(getSearchBoxId())
+                    .createSearchField(event -> searchBy(event.getText()));
             searchResetIcon = createSearchResetIcon();
             addButton = createAddButton();
         }

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/common/table/AbstractTableHeader.java

@@ -87,7 +87,8 @@ public abstract class AbstractTableHeader extends VerticalLayout {
 
     private void createComponents() {
         headerCaption = createHeaderCaption();
-        searchField = new TextFieldBuilder(getSearchBoxId()).createSearchField(event -> searchBy(event.getText()));
+        searchField = new TextFieldBuilder(64).id(getSearchBoxId())
+                .createSearchField(event -> searchBy(event.getText()));
 
         searchResetIcon = createSearchResetIcon();
 

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/distributions/disttype/CreateUpdateDistSetTypeLayout.java

@@ -24,7 +24,6 @@ import org.eclipse.hawkbit.ui.SpPermissionChecker;
 import org.eclipse.hawkbit.ui.colorpicker.ColorPickerConstants;
 import org.eclipse.hawkbit.ui.colorpicker.ColorPickerHelper;
 import org.eclipse.hawkbit.ui.common.DistributionSetTypeBeanQuery;
-import org.eclipse.hawkbit.ui.common.EmptyStringValidator;
 import org.eclipse.hawkbit.ui.common.builder.TextAreaBuilder;
 import org.eclipse.hawkbit.ui.common.builder.TextFieldBuilder;
 import org.eclipse.hawkbit.ui.components.SPUIComponentProvider;
@@ -124,22 +123,21 @@ public class CreateUpdateDistSetTypeLayout extends CreateUpdateTypeLayout<Distri
         super.createRequiredComponents();
 
         tagName = createTextField("textfield.name", SPUIDefinitions.DIST_SET_TYPE_NAME,
-                SPUIDefinitions.NEW_DISTRIBUTION_TYPE_NAME);
+                SPUIDefinitions.NEW_DISTRIBUTION_TYPE_NAME, DistributionSetType.NAME_MAX_SIZE);
 
         typeKey = createTextField("textfield.key", SPUIDefinitions.DIST_SET_TYPE_KEY,
-                SPUIDefinitions.NEW_DISTRIBUTION_TYPE_KEY);
+                SPUIDefinitions.NEW_DISTRIBUTION_TYPE_KEY, DistributionSetType.KEY_MAX_SIZE);
 
-        tagDesc = new TextAreaBuilder().caption(i18n.getMessage("textfield.description"))
+        tagDesc = new TextAreaBuilder(DistributionSetType.DESCRIPTION_MAX_SIZE)
+                .caption(i18n.getMessage("textfield.description"))
                 .styleName(ValoTheme.TEXTFIELD_TINY + " " + SPUIDefinitions.DIST_SET_TYPE_DESC)
-                .prompt(i18n.getMessage("textfield.description")).immediate(true)
                 .id(SPUIDefinitions.NEW_DISTRIBUTION_TYPE_DESC).buildTextComponent();
-        tagDesc.setNullRepresentation("");
     }
 
-    private TextField createTextField(final String in18Key, final String styleName, final String id) {
+    private TextField createTextField(final String in18Key, final String styleName, final String id,
-        return new TextFieldBuilder().caption(i18n.getMessage(in18Key))
+            final int maxSize) {
-                .styleName(ValoTheme.TEXTFIELD_TINY + " " + styleName).required(true).prompt(i18n.getMessage(in18Key))
+        return new TextFieldBuilder(maxSize).caption(i18n.getMessage(in18Key))
-                .validator(new EmptyStringValidator(i18n)).immediate(true).id(id).buildTextComponent();
+                .styleName(ValoTheme.TEXTFIELD_TINY + " " + styleName).required(true, i18n).id(id).buildTextComponent();
     }
 
     @Override

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/filtermanagement/AutoCompleteTextFieldComponent.java

@@ -15,11 +15,11 @@ import java.util.concurrent.Executor;
 import javax.annotation.PostConstruct;
 import javax.annotation.PreDestroy;
 
+import org.eclipse.hawkbit.repository.model.TargetFilterQuery;
 import org.eclipse.hawkbit.repository.rsql.RsqlValidationOracle;
 import org.eclipse.hawkbit.ui.common.builder.TextFieldBuilder;
 import org.eclipse.hawkbit.ui.filtermanagement.event.CustomFilterUIEvent;
 import org.eclipse.hawkbit.ui.filtermanagement.state.FilterManagementUIState;
-import org.eclipse.hawkbit.ui.utils.SPUILabelDefinitions;
 import org.eclipse.hawkbit.ui.utils.SPUIStyleDefinitions;
 import org.eclipse.hawkbit.ui.utils.UIComponentIdProvider;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -195,12 +195,11 @@ public class AutoCompleteTextFieldComponent extends HorizontalLayout {
     }
 
     private TextField createSearchField() {
-        final TextField textField = new TextFieldBuilder().immediate(true).id(UIComponentIdProvider.CUSTOM_FILTER_QUERY)
+        final TextField textField = new TextFieldBuilder(TargetFilterQuery.QUERY_MAX_SIZE)
-                .maxLengthAllowed(SPUILabelDefinitions.TARGET_FILTER_QUERY_TEXT_FIELD_LENGTH).buildTextComponent();
+                .id(UIComponentIdProvider.CUSTOM_FILTER_QUERY).buildTextComponent();
         textField.addStyleName("target-filter-textfield");
         textField.setWidth(900.0F, Unit.PIXELS);
         textField.setTextChangeEventMode(TextChangeEventMode.EAGER);
-        textField.setImmediate(true);
         textField.setTextChangeTimeout(100);
         return textField;
     }

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/filtermanagement/CreateOrUpdateFilterHeader.java

@@ -12,6 +12,7 @@ import java.util.Optional;
 
 import org.eclipse.hawkbit.repository.EntityFactory;
 import org.eclipse.hawkbit.repository.TargetFilterQueryManagement;
+import org.eclipse.hawkbit.repository.model.NamedEntity;
 import org.eclipse.hawkbit.repository.model.TargetFilterQuery;
 import org.eclipse.hawkbit.ui.SpPermissionChecker;
 import org.eclipse.hawkbit.ui.UiProperties;
@@ -201,8 +202,8 @@ public class CreateOrUpdateFilterHeader extends VerticalLayout implements Button
     }
 
     private TextField createNameTextField() {
-        final TextField nameField = new TextFieldBuilder().caption(i18n.getMessage("textfield.customfiltername"))
+        final TextField nameField = new TextFieldBuilder(NamedEntity.NAME_MAX_SIZE)
-                .prompt(i18n.getMessage("textfield.customfiltername")).immediate(true)
+                .caption(i18n.getMessage("textfield.customfiltername")).required(true, i18n)
                 .id(UIComponentIdProvider.CUSTOM_FILTER_ADD_NAME).buildTextComponent();
         nameField.setPropertyDataSource(nameLabel);
         nameField.addTextChangeListener(this::onFilterNameChange);
@@ -368,8 +369,8 @@ public class CreateOrUpdateFilterHeader extends VerticalLayout implements Button
     }
 
     private void createTargetFilterQuery() {
-        final TargetFilterQuery targetFilterQuery = targetFilterQueryManagement.create(entityFactory
+        final TargetFilterQuery targetFilterQuery = targetFilterQueryManagement.create(entityFactory.targetFilterQuery()
-                .targetFilterQuery().create().name(nameTextField.getValue()).query(queryTextField.getValue()));
+                .create().name(nameTextField.getValue()).query(queryTextField.getValue()));
         notification.displaySuccess(
                 i18n.getMessage("message.create.filter.success", new Object[] { targetFilterQuery.getName() }));
         eventBus.publish(this, CustomFilterUIEvent.CREATE_TARGET_FILTER_QUERY);

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/filtermanagement/TargetFilterHeader.java

@@ -122,7 +122,8 @@ public class TargetFilterHeader extends VerticalLayout {
     }
 
     private TextField createSearchField() {
-        final TextField campSearchTextField = new TextFieldBuilder(UIComponentIdProvider.TARGET_FILTER_SEARCH_TEXT)
+        final TextField campSearchTextField = new TextFieldBuilder(64)
+                .id(UIComponentIdProvider.TARGET_FILTER_SEARCH_TEXT)
                 .createSearchField(event -> searchBy(event.getText()));
         campSearchTextField.setWidth(500.0F, Unit.PIXELS);
         return campSearchTextField;

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/layouts/AbstractCreateUpdateTagLayout.java

@@ -18,7 +18,6 @@ import org.eclipse.hawkbit.ui.colorpicker.ColorPickerHelper;
 import org.eclipse.hawkbit.ui.colorpicker.ColorPickerLayout;
 import org.eclipse.hawkbit.ui.common.CommonDialogWindow;
 import org.eclipse.hawkbit.ui.common.CommonDialogWindow.SaveDialogCloseListener;
-import org.eclipse.hawkbit.ui.common.EmptyStringValidator;
 import org.eclipse.hawkbit.ui.common.builder.LabelBuilder;
 import org.eclipse.hawkbit.ui.common.builder.TextAreaBuilder;
 import org.eclipse.hawkbit.ui.common.builder.TextFieldBuilder;
@@ -191,18 +190,15 @@ public abstract class AbstractCreateUpdateTagLayout<E extends NamedEntity> exten
         colorLabel = new LabelBuilder().name(i18n.getMessage("label.choose.tag.color")).buildLabel();
         colorLabel.addStyleName(SPUIDefinitions.COLOR_LABEL_STYLE);
 
-        tagName = new TextFieldBuilder().caption(i18n.getMessage("textfield.name"))
+        tagName = new TextFieldBuilder(NamedEntity.NAME_MAX_SIZE).caption(i18n.getMessage("textfield.name"))
-                .styleName(ValoTheme.TEXTFIELD_TINY + " " + SPUIDefinitions.TAG_NAME).required(true)
+                .styleName(ValoTheme.TEXTFIELD_TINY + " " + SPUIDefinitions.TAG_NAME).required(true, i18n)
-                .prompt(i18n.getMessage("textfield.name")).immediate(true).id(SPUIDefinitions.NEW_TARGET_TAG_NAME)
+                .id(SPUIDefinitions.NEW_TARGET_TAG_NAME).buildTextComponent();
-                .validator(new EmptyStringValidator(i18n)).buildTextComponent();
 
-        tagDesc = new TextAreaBuilder().caption(i18n.getMessage("textfield.description"))
+        tagDesc = new TextAreaBuilder(NamedEntity.DESCRIPTION_MAX_SIZE)
+                .caption(i18n.getMessage("textfield.description"))
                 .styleName(ValoTheme.TEXTFIELD_TINY + " " + SPUIDefinitions.TAG_DESC)
-                .prompt(i18n.getMessage("textfield.description")).immediate(true)
                 .id(SPUIDefinitions.NEW_TARGET_TAG_DESC).buildTextComponent();
 
-        tagDesc.setNullRepresentation("");
-
         tagNameComboBox = SPUIComponentProvider.getComboBox(null, "", null, null, false, "",
                 i18n.getMessage("label.combobox.tag"));
         tagNameComboBox.addStyleName(SPUIDefinitions.FILTER_TYPE_COMBO_STYLE);

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/management/dstable/DistributionAddUpdateWindowLayout.java

@@ -22,7 +22,6 @@ import org.eclipse.hawkbit.repository.model.TenantMetaData;
 import org.eclipse.hawkbit.ui.common.CommonDialogWindow;
 import org.eclipse.hawkbit.ui.common.CommonDialogWindow.SaveDialogCloseListener;
 import org.eclipse.hawkbit.ui.common.DistributionSetTypeBeanQuery;
-import org.eclipse.hawkbit.ui.common.EmptyStringValidator;
 import org.eclipse.hawkbit.ui.common.builder.TextAreaBuilder;
 import org.eclipse.hawkbit.ui.common.builder.TextFieldBuilder;
 import org.eclipse.hawkbit.ui.common.builder.WindowBuilder;
@@ -222,8 +221,10 @@ public class DistributionAddUpdateWindowLayout extends CustomComponent {
      * Create required UI components.
      */
     private void createRequiredComponents() {
-        distNameTextField = createTextField("textfield.name", UIComponentIdProvider.DIST_ADD_NAME);
+        distNameTextField = createTextField("textfield.name", UIComponentIdProvider.DIST_ADD_NAME,
-        distVersionTextField = createTextField("textfield.version", UIComponentIdProvider.DIST_ADD_VERSION);
+                DistributionSet.NAME_MAX_SIZE);
+        distVersionTextField = createTextField("textfield.version", UIComponentIdProvider.DIST_ADD_VERSION,
+                DistributionSet.VERSION_MAX_SIZE);
 
         distsetTypeNameComboBox = SPUIComponentProvider.getComboBox(i18n.getMessage("label.combobox.type"), "", null,
                 "", false, "", i18n.getMessage("label.combobox.type"));
@@ -231,10 +232,9 @@ public class DistributionAddUpdateWindowLayout extends CustomComponent {
         distsetTypeNameComboBox.setNullSelectionAllowed(false);
         distsetTypeNameComboBox.setId(UIComponentIdProvider.DIST_ADD_DISTSETTYPE);
 
-        descTextArea = new TextAreaBuilder().caption(i18n.getMessage("textfield.description")).style("text-area-style")
+        descTextArea = new TextAreaBuilder(DistributionSet.DESCRIPTION_MAX_SIZE)
-                .prompt(i18n.getMessage("textfield.description")).immediate(true)
+                .caption(i18n.getMessage("textfield.description")).style("text-area-style")
                 .id(UIComponentIdProvider.DIST_ADD_DESC).buildTextComponent();
-        descTextArea.setNullRepresentation("");
 
         reqMigStepCheckbox = SPUIComponentProvider.getCheckBox(i18n.getMessage("checkbox.dist.required.migration.step"),
                 "dist-checkbox-style", null, false, "");
@@ -242,12 +242,9 @@ public class DistributionAddUpdateWindowLayout extends CustomComponent {
         reqMigStepCheckbox.setId(UIComponentIdProvider.DIST_ADD_MIGRATION_CHECK);
     }
 
-    private TextField createTextField(final String in18Key, final String id) {
+    private TextField createTextField(final String in18Key, final String id, final int maxLength) {
-        final TextField buildTextField = new TextFieldBuilder().caption(i18n.getMessage(in18Key)).required(true)
+        return new TextFieldBuilder(maxLength).caption(i18n.getMessage(in18Key)).required(true, i18n).id(id)
-                .validator(new EmptyStringValidator(i18n)).prompt(i18n.getMessage(in18Key)).immediate(true).id(id)
                 .buildTextComponent();
-        buildTextField.setNullRepresentation("");
-        return buildTextField;
     }
 
     /**

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/management/footer/MaintenanceWindowLayout.java

@@ -17,6 +17,7 @@ import java.util.stream.Collectors;
 
 import org.eclipse.hawkbit.repository.MaintenanceScheduleHelper;
 import org.eclipse.hawkbit.repository.exception.InvalidMaintenanceScheduleException;
+import org.eclipse.hawkbit.repository.model.Action;
 import org.eclipse.hawkbit.ui.common.builder.LabelBuilder;
 import org.eclipse.hawkbit.ui.common.builder.TextFieldBuilder;
 import org.eclipse.hawkbit.ui.utils.SPDateTimeUtil;
@@ -83,9 +84,10 @@ public class MaintenanceWindowLayout extends VerticalLayout {
      * Text field to specify the schedule.
      */
     private void createMaintenanceScheduleControl() {
-        schedule = new TextFieldBuilder().id(UIComponentIdProvider.MAINTENANCE_WINDOW_SCHEDULE_ID)
+        schedule = new TextFieldBuilder(Action.MAINTENANCE_SCHEDULE_CRON_LENGTH)
-                .caption(i18n.getMessage("caption.maintenancewindow.schedule")).immediate(true)
+                .id(UIComponentIdProvider.MAINTENANCE_WINDOW_SCHEDULE_ID)
-                .validator(new CronValidator()).prompt("0 0 3 ? * 6").required(true).buildTextComponent();
+                .caption(i18n.getMessage("caption.maintenancewindow.schedule")).validator(new CronValidator())
+                .prompt("0 0 3 ? * 6").required(true, i18n).buildTextComponent();
         schedule.addTextChangeListener(new CronTranslationListener());
     }
 
@@ -148,9 +150,10 @@ public class MaintenanceWindowLayout extends VerticalLayout {
      * Text field to specify the duration.
      */
     private void createMaintenanceDurationControl() {
-        duration = new TextFieldBuilder().id(UIComponentIdProvider.MAINTENANCE_WINDOW_DURATION_ID)
+        duration = new TextFieldBuilder(Action.MAINTENANCE_WINDOW_DURATION_LENGTH)
-                .caption(i18n.getMessage("caption.maintenancewindow.duration")).immediate(true)
+                .id(UIComponentIdProvider.MAINTENANCE_WINDOW_DURATION_ID)
-                .validator(new DurationValidator()).prompt("hh:mm:ss").required(true).buildTextComponent();
+                .caption(i18n.getMessage("caption.maintenancewindow.duration")).validator(new DurationValidator())
+                .prompt("hh:mm:ss").required(true, i18n).buildTextComponent();
     }
 
     /**

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/management/targettable/TargetAddUpdateWindowLayout.java

@@ -98,21 +98,18 @@ public class TargetAddUpdateWindowLayout extends CustomComponent {
     }
 
     private void createRequiredComponents() {
-        controllerIDTextField = createTextField("prompt.target.id", UIComponentIdProvider.TARGET_ADD_CONTROLLER_ID);
+        controllerIDTextField = new TextFieldBuilder(Target.CONTROLLER_ID_MAX_SIZE)
+                .caption(i18n.getMessage("prompt.target.id")).required(true, i18n)
+                .id(UIComponentIdProvider.TARGET_ADD_CONTROLLER_ID).buildTextComponent();
         controllerIDTextField
                 .addValidator(new RegexpValidator("[.\\S]*", i18n.getMessage("message.target.whitespace.check")));
-        nameTextField = createTextField("textfield.name", UIComponentIdProvider.TARGET_ADD_NAME);
+        nameTextField = new TextFieldBuilder(Target.NAME_MAX_SIZE).caption(i18n.getMessage("textfield.name"))
+                .id(UIComponentIdProvider.TARGET_ADD_NAME).buildTextComponent();
         nameTextField.setRequired(false);
 
-        descTextArea = new TextAreaBuilder().caption(i18n.getMessage("textfield.description")).style("text-area-style")
+        descTextArea = new TextAreaBuilder(Target.DESCRIPTION_MAX_SIZE)
-                .prompt(i18n.getMessage("textfield.description")).immediate(true)
+                .caption(i18n.getMessage("textfield.description")).style("text-area-style")
                 .id(UIComponentIdProvider.TARGET_ADD_DESC).buildTextComponent();
-        descTextArea.setNullRepresentation("");
-    }
-
-    private TextField createTextField(final String in18Key, final String id) {
-        return new TextFieldBuilder().caption(i18n.getMessage(in18Key)).required(true).prompt(i18n.getMessage(in18Key))
-                .immediate(true).id(id).buildTextComponent();
     }
 
     private void buildLayout() {

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/management/targettable/TargetBulkUpdateWindowLayout.java

@@ -16,6 +16,7 @@ import org.eclipse.hawkbit.repository.DistributionSetManagement;
 import org.eclipse.hawkbit.repository.EntityFactory;
 import org.eclipse.hawkbit.repository.TargetManagement;
 import org.eclipse.hawkbit.repository.TargetTagManagement;
+import org.eclipse.hawkbit.repository.model.Target;
 import org.eclipse.hawkbit.ui.SpPermissionChecker;
 import org.eclipse.hawkbit.ui.UiProperties;
 import org.eclipse.hawkbit.ui.common.builder.TextAreaBuilder;
@@ -98,9 +99,9 @@ public class TargetBulkUpdateWindowLayout extends CustomComponent {
     TargetBulkUpdateWindowLayout(final VaadinMessageSource i18n, final TargetManagement targetManagement,
             final UIEventBus eventBus, final ManagementUIState managementUIState,
             final DeploymentManagement deploymentManagement, final UiProperties uiproperties,
-            final SpPermissionChecker checker, final UINotification uinotification, final TargetTagManagement tagManagement,
+            final SpPermissionChecker checker, final UINotification uinotification,
-            final DistributionSetManagement distributionSetManagement, final EntityFactory entityFactory,
+            final TargetTagManagement tagManagement, final DistributionSetManagement distributionSetManagement,
-            final Executor uiExecutor) {
+            final EntityFactory entityFactory, final Executor uiExecutor) {
         this.i18n = i18n;
         this.targetManagement = targetManagement;
         this.eventBus = eventBus;
@@ -194,10 +195,9 @@ public class TargetBulkUpdateWindowLayout extends CustomComponent {
     }
 
     private TextArea getDescriptionTextArea() {
-        final TextArea description = new TextAreaBuilder().caption(i18n.getMessage("textfield.description"))
+        final TextArea description = new TextAreaBuilder(Target.DESCRIPTION_MAX_SIZE)
-                .style("text-area-style").prompt(i18n.getMessage("textfield.description")).immediate(true)
+                .caption(i18n.getMessage("textfield.description")).style("text-area-style")
                 .id(UIComponentIdProvider.BULK_UPLOAD_DESC).buildTextComponent();
-        description.setNullRepresentation("");
         description.setWidth("100%");
         return description;
     }

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/rollout/rollout/AddUpdateRolloutWindowLayout.java

@@ -333,7 +333,8 @@ public class AddUpdateRolloutWindowLayout extends GridLayout {
 
         private Long getScheduledStartTime() {
             return AutoStartOptionGroupLayout.AutoStartOption.SCHEDULED.equals(getAutoStartOption())
-                    ? autoStartOptionGroupLayout.getStartAtDateField().getValue().getTime() : null;
+                    ? autoStartOptionGroupLayout.getStartAtDateField().getValue().getTime()
+                    : null;
         }
 
         private int getErrorThresholdPercentage(final int amountGroup) {
@@ -486,13 +487,12 @@ public class AddUpdateRolloutWindowLayout extends GridLayout {
         return new LabelBuilder().name(i18n.getMessage(key)).buildLabel();
     }
 
-    private TextField createTextField(final String in18Key, final String id) {
+    private TextField createTextField(final String in18Key, final String id, final int maxLength) {
-        return new TextFieldBuilder().prompt(i18n.getMessage(in18Key)).immediate(true).id(id).buildTextComponent();
+        return new TextFieldBuilder(maxLength).prompt(i18n.getMessage(in18Key)).id(id).buildTextComponent();
     }
 
     private TextField createIntegerTextField(final String in18Key, final String id) {
-        final TextField textField = createTextField(in18Key, id);
+        final TextField textField = createTextField(in18Key, id, 32);
-        textField.setNullRepresentation("");
         textField.setConverter(new StringToIntegerConverter());
         textField.setConversionError(i18n.getMessage(MESSAGE_ENTER_NUMBER));
         textField.setSizeUndefined();
@@ -615,12 +615,10 @@ public class AddUpdateRolloutWindowLayout extends GridLayout {
     }
 
     private static TextArea createTargetFilterQuery() {
-        final TextArea filterField = new TextAreaBuilder().style("text-area-style")
+        final TextArea filterField = new TextAreaBuilder(TargetFilterQuery.QUERY_MAX_SIZE).style("text-area-style")
-                .id(UIComponentIdProvider.ROLLOUT_TARGET_FILTER_QUERY_FIELD)
+                .id(UIComponentIdProvider.ROLLOUT_TARGET_FILTER_QUERY_FIELD).buildTextComponent();
-                .maxLengthAllowed(SPUILabelDefinitions.TARGET_FILTER_QUERY_TEXT_FIELD_LENGTH).buildTextComponent();
 
         filterField.setId(UIComponentIdProvider.ROLLOUT_TARGET_FILTER_QUERY_FIELD);
-        filterField.setNullRepresentation("");
         filterField.setEnabled(false);
         filterField.setSizeUndefined();
         return filterField;
@@ -776,11 +774,9 @@ public class AddUpdateRolloutWindowLayout extends GridLayout {
         errorThresholdOptionGroup.setValue(ERRORTHRESOLDOPTIONS.PERCENT.getValue());
     }
 
-    private TextArea createDescription() {
+    private static TextArea createDescription() {
-        final TextArea descriptionField = new TextAreaBuilder().style("text-area-style")
+        final TextArea descriptionField = new TextAreaBuilder(Rollout.DESCRIPTION_MAX_SIZE).style("text-area-style")
-                .prompt(i18n.getMessage("textfield.description")).id(UIComponentIdProvider.ROLLOUT_DESCRIPTION_ID)
+                .id(UIComponentIdProvider.ROLLOUT_DESCRIPTION_ID).buildTextComponent();
-                .buildTextComponent();
-        descriptionField.setNullRepresentation("");
         descriptionField.setSizeUndefined();
         return descriptionField;
     }
@@ -846,8 +842,10 @@ public class AddUpdateRolloutWindowLayout extends GridLayout {
     }
 
     private TextField createRolloutNameField() {
-        final TextField rolloutNameField = createTextField("textfield.name",
+        final TextField rolloutNameField = new TextFieldBuilder(Rollout.NAME_MAX_SIZE)
-                UIComponentIdProvider.ROLLOUT_NAME_FIELD_ID);
+                .prompt(i18n.getMessage("textfield.name")).id(UIComponentIdProvider.ROLLOUT_NAME_FIELD_ID)
+                .required(true, i18n).buildTextComponent();
+
         rolloutNameField.setSizeUndefined();
         return rolloutNameField;
     }

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/rollout/rollout/DefineGroupsLayout.java

@@ -50,7 +50,6 @@ import com.vaadin.data.util.converter.StringToFloatConverter;
 import com.vaadin.data.util.converter.StringToIntegerConverter;
 import com.vaadin.data.validator.FloatRangeValidator;
 import com.vaadin.data.validator.IntegerRangeValidator;
-import com.vaadin.data.validator.StringLengthValidator;
 import com.vaadin.server.FontAwesome;
 import com.vaadin.server.UserError;
 import com.vaadin.ui.Button;
@@ -419,19 +418,17 @@ public class DefineGroupsLayout extends GridLayout {
         }
 
         private TextField createTextField(final String in18Key, final String id) {
-            final TextField textField = new TextFieldBuilder().prompt(i18n.getMessage(in18Key)).immediate(true).id(id)
+            final TextField textField = new TextFieldBuilder(RolloutGroup.NAME_MAX_SIZE).required(true, i18n)
-                    .buildTextComponent();
+                    .prompt(i18n.getMessage(in18Key)).id(id).buildTextComponent();
+
             textField.setSizeUndefined();
-            textField.addValidator(
-                    new StringLengthValidator(i18n.getMessage("message.rollout.group.name.invalid"), 1, 64, false));
             return textField;
         }
 
         private TextField createPercentageField(final String in18Key, final String id) {
-            final TextField textField = new TextFieldBuilder().prompt(i18n.getMessage(in18Key)).immediate(true).id(id)
+            final TextField textField = new TextFieldBuilder(32).prompt(i18n.getMessage(in18Key)).id(id)
                     .buildTextComponent();
             textField.setWidth(80, Unit.PIXELS);
-            textField.setNullRepresentation("");
             textField.setConverter(new StringToIntegerConverter());
             textField.addValidator(this::validateMandatoryPercentage);
             return textField;
@@ -474,11 +471,9 @@ public class DefineGroupsLayout extends GridLayout {
         }
 
         private TextArea createTargetFilterQuery() {
-            final TextArea filterField = new TextAreaBuilder().style("text-area-style")
+            final TextArea filterField = new TextAreaBuilder(TargetFilterQuery.QUERY_MAX_SIZE).style("text-area-style")
-                    .id(UIComponentIdProvider.ROLLOUT_TARGET_FILTER_QUERY_FIELD)
+                    .id(UIComponentIdProvider.ROLLOUT_TARGET_FILTER_QUERY_FIELD).buildTextComponent();
-                    .maxLengthAllowed(SPUILabelDefinitions.TARGET_FILTER_QUERY_TEXT_FIELD_LENGTH).buildTextComponent();
 
-            filterField.setNullRepresentation("");
             filterField.setEnabled(false);
             filterField.setSizeUndefined();
             return filterField;

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/tenantconfiguration/authentication/CertificateAuthenticationConfigurationItem.java

@@ -53,7 +53,7 @@ public class CertificateAuthenticationConfigurationItem extends AbstractBooleanT
                 "The SSL Issuer iRules.X509 hash, to validate against the controller request certifcate.");
         caRootAuthorityLabel.setWidthUndefined();
 
-        caRootAuthorityTextField = new TextFieldBuilder().immediate(true).maxLengthAllowed(160).buildTextComponent();
+        caRootAuthorityTextField = new TextFieldBuilder(160).buildTextComponent();
         caRootAuthorityTextField.setWidth("100%");
         caRootAuthorityTextField.addTextChangeListener(event -> caRootAuthorityChanged());
 

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/utils/SPUILabelDefinitions.java

@@ -272,11 +272,6 @@ public final class SPUILabelDefinitions {
      */
     public static final String STATUS_ICON = "statusIcon";
 
-    /**
-     * Create custom target filter header - query text field length.
-     */
-    public static final int TARGET_FILTER_QUERY_TEXT_FIELD_LENGTH = 1024;
-
     /**
      * Status - column property.
      */