reduced duplicate code.

hawkbit-repository/src/main/java/org/eclipse/hawkbit/repository/model/DistributionSetMetadata.java

@@ -8,10 +8,6 @@
  */
 package org.eclipse.hawkbit.repository.model;
 
-import java.io.Serializable;
-
-import javax.persistence.Basic;
-import javax.persistence.Column;
 import javax.persistence.ConstraintMode;
 import javax.persistence.Entity;
 import javax.persistence.FetchType;
@@ -29,24 +25,16 @@ import javax.persistence.Table;
 @IdClass(DsMetadataCompositeKey.class)
 @Entity
 @Table(name = "sp_ds_metadata")
-public class DistributionSetMetadata implements Serializable {
+public class DistributionSetMetadata extends MetaData {
     private static final long serialVersionUID = 1L;
 
-    @Id
-    @Column(name = "meta_key", length = 128)
-    private String key;
-
-    @Column(name = "meta_value", length = 4000)
-    @Basic
-    private String value;
-
     @Id
     @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "ds_id", foreignKey = @ForeignKey(value = ConstraintMode.CONSTRAINT, name = "fk_metadata_ds"))
     private DistributionSet distributionSet;
 
     public DistributionSetMetadata() {
-        // Default constructor for JPA.
+        super();
     }
 
     /**
@@ -57,35 +45,18 @@ public class DistributionSetMetadata implements Serializable {
      * @param value
      */
     public DistributionSetMetadata(final String key, final DistributionSet distributionSet, final String value) {
-        this.key = key;
+        super(key, value);
         this.distributionSet = distributionSet;
-        this.value = value;
     }
 
     public DsMetadataCompositeKey getId() {
-        return new DsMetadataCompositeKey(distributionSet, key);
-    }
-
-    public String getKey() {
-        return key;
-    }
-
-    public void setKey(final String key) {
-        this.key = key;
+        return new DsMetadataCompositeKey(distributionSet, getKey());
     }
 
     public void setDistributionSet(final DistributionSet distributionSet) {
         this.distributionSet = distributionSet;
     }
 
-    public String getValue() {
-        return value;
-    }
-
-    public void setValue(final String value) {
-        this.value = value;
-    }
-
     public DistributionSet getDistributionSet() {
         return distributionSet;
     }
@@ -93,9 +64,8 @@ public class DistributionSetMetadata implements Serializable {
     @Override
     public int hashCode() {
         final int prime = 31;
-        int result = 1;
-        result = prime * result + (distributionSet == null ? 0 : distributionSet.hashCode());
-        result = prime * result + (key == null ? 0 : key.hashCode());
+        int result = super.hashCode();
+        result = prime * result + ((distributionSet == null) ? 0 : distributionSet.hashCode());
         return result;
     }
 
@@ -104,7 +74,7 @@ public class DistributionSetMetadata implements Serializable {
         if (this == obj) {
             return true;
         }
-        if (obj == null) {
+        if (!super.equals(obj)) {
             return false;
         }
         if (!(obj instanceof DistributionSetMetadata)) {
@@ -118,14 +88,6 @@ public class DistributionSetMetadata implements Serializable {
         } else if (!distributionSet.equals(other.distributionSet)) {
             return false;
         }
-        if (key == null) {
-            if (other.key != null) {
-                return false;
-            }
-        } else if (!key.equals(other.key)) {
-            return false;
-        }
         return true;
     }
-
 }

hawkbit-repository/src/main/java/org/eclipse/hawkbit/repository/model/MetaData.java

@@ -0,0 +1,98 @@
+/**
+ * Copyright (c) 2015 Bosch Software Innovations GmbH and others.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.eclipse.hawkbit.repository.model;
+
+import java.io.Serializable;
+
+import javax.persistence.Basic;
+import javax.persistence.Column;
+import javax.persistence.Id;
+import javax.persistence.MappedSuperclass;
+
+/**
+ * Meta data for entities.
+ *
+ */
+@MappedSuperclass
+public abstract class MetaData implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    @Id
+    @Column(name = "meta_key", length = 128)
+    private String key;
+
+    @Column(name = "meta_value", length = 4000)
+    @Basic
+    private String value;
+
+    public MetaData(final String key, final String value) {
+        super();
+        this.key = key;
+        this.value = value;
+    }
+
+    public MetaData() {
+        // Default constructor needed for JPA entities
+    }
+
+    public String getKey() {
+        return key;
+    }
+
+    public void setKey(final String key) {
+        this.key = key;
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+    public void setValue(final String value) {
+        this.value = value;
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((key == null) ? 0 : key.hashCode());
+        result = prime * result + ((value == null) ? 0 : value.hashCode());
+        return result;
+    }
+
+    @Override
+    public boolean equals(final Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null) {
+            return false;
+        }
+        if (!(obj instanceof MetaData)) {
+            return false;
+        }
+        final MetaData other = (MetaData) obj;
+        if (key == null) {
+            if (other.key != null) {
+                return false;
+            }
+        } else if (!key.equals(other.key)) {
+            return false;
+        }
+        if (value == null) {
+            if (other.value != null) {
+                return false;
+            }
+        } else if (!value.equals(other.value)) {
+            return false;
+        }
+        return true;
+    }
+
+}

hawkbit-repository/src/main/java/org/eclipse/hawkbit/repository/model/SoftwareModuleMetadata.java

@@ -8,9 +8,6 @@
  */
 package org.eclipse.hawkbit.repository.model;
 
-import java.io.Serializable;
-
-import javax.persistence.Column;
 import javax.persistence.ConstraintMode;
 import javax.persistence.Entity;
 import javax.persistence.FetchType;
@@ -28,16 +25,9 @@ import javax.persistence.Table;
 @IdClass(SwMetadataCompositeKey.class)
 @Entity
 @Table(name = "sp_sw_metadata")
-public class SoftwareModuleMetadata implements Serializable {
+public class SoftwareModuleMetadata extends MetaData {
     private static final long serialVersionUID = 1L;
 
-    @Id
-    @Column(name = "meta_key", length = 128)
-    private String key;
-
-    @Column(name = "meta_value", length = 4000)
-    private String value;
-
     @Id
     @ManyToOne(targetEntity = SoftwareModule.class, fetch = FetchType.LAZY)
     @JoinColumn(name = "sw_id", foreignKey = @ForeignKey(value = ConstraintMode.CONSTRAINT, name = "fk_metadata_sw"))
@@ -47,7 +37,7 @@ public class SoftwareModuleMetadata implements Serializable {
      * Default constructor for JPA.
      */
     public SoftwareModuleMetadata() {
-        // default constructor for JPA.
+        super();
     }
 
     /**
@@ -60,21 +50,12 @@ public class SoftwareModuleMetadata implements Serializable {
      *            of the meta data element
      */
     public SoftwareModuleMetadata(final String key, final SoftwareModule softwareModule, final String value) {
-        this.key = key;
+        super(key, value);
         this.softwareModule = softwareModule;
-        this.value = value;
     }
 
     public SwMetadataCompositeKey getId() {
-        return new SwMetadataCompositeKey(softwareModule, key);
-    }
-
-    public String getValue() {
-        return value;
-    }
-
-    public void setValue(final String value) {
-        this.value = value;
+        return new SwMetadataCompositeKey(softwareModule, getKey());
     }
 
     public SoftwareModule getSoftwareModule() {
@@ -85,24 +66,10 @@ public class SoftwareModuleMetadata implements Serializable {
         this.softwareModule = softwareModule;
     }
 
-    public String getKey() {
-        return key;
-    }
-
-    public void setKey(final String key) {
-        this.key = key;
-    }
-
-    @Override
-    public String toString() {
-        return "SoftwareModuleMetadata [key=" + key + ", value=" + value + ", softwareModule=" + softwareModule + "]";
-    }
-
     @Override
     public int hashCode() {
         final int prime = 31;
-        int result = 1;
-        result = prime * result + ((key == null) ? 0 : key.hashCode());
+        int result = super.hashCode();
         result = prime * result + ((softwareModule == null) ? 0 : softwareModule.hashCode());
         return result;
     }
@@ -112,20 +79,13 @@ public class SoftwareModuleMetadata implements Serializable {
         if (this == obj) {
             return true;
         }
-        if (obj == null) {
+        if (!super.equals(obj)) {
             return false;
         }
         if (!(obj instanceof SoftwareModuleMetadata)) {
             return false;
         }
         final SoftwareModuleMetadata other = (SoftwareModuleMetadata) obj;
-        if (key == null) {
-            if (other.key != null) {
-                return false;
-            }
-        } else if (!key.equals(other.key)) {
-            return false;
-        }
         if (softwareModule == null) {
             if (other.softwareModule != null) {
                 return false;
@@ -135,5 +95,4 @@ public class SoftwareModuleMetadata implements Serializable {
         }
         return true;
     }
-
 }