/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.engine.impl.persistence.entity;

import java.io.Serializable;

import org.activiti.engine.impl.db.HasRevision;
import org.activiti.engine.impl.db.PersistentObject;

/**
 * @author Tom Baeyens
 */
public class ByteArrayEntity implements Serializable, PersistentObject, HasRevision {

  private static final long serialVersionUID = 1L;

  private static final Object PERSISTENTSTATE_NULL = new Object();

  protected String id;
  protected int revision;
  protected String name;
  protected byte[] bytes;
  protected String deploymentId;

  public ByteArrayEntity() {
  }

  public ByteArrayEntity(String name, byte[] bytes) {
    this.name = name;
    this.bytes = bytes;
  }

  public ByteArrayEntity(byte[] bytes) {
    this.bytes = bytes;
  }

  public byte[] getBytes() {
    return bytes;
  }

  public Object getPersistentState() {
    return (bytes != null ? bytes : PERSISTENTSTATE_NULL);
  }
  
  public int getRevisionNext() {
    return revision+1;
  }

  // getters and setters //////////////////////////////////////////////////////

  public String getId() {
    return id;
  }
  public void setId(String id) {
    this.id = id;
  }
  public String getName() {
    return name;
  }
  public String getDeploymentId() {
    return deploymentId;
  }
  public void setDeploymentId(String deploymentId) {
    this.deploymentId = deploymentId;
  }
  public void setBytes(byte[] bytes) {
    this.bytes = bytes;
  }
  public int getRevision() {
    return revision;
  }
  public void setRevision(int revision) {
    this.revision = revision;
  }
}

@@ -637,16 +637,41 @@
 lizable;
+%0Aimport java.util.Arrays;
 %0A%0Aimport
@@ -1466,21 +1466,36 @@
  null ? 
+new ByteArray(
 bytes
+)
  : PERSI
@@ -2163,14 +2163,526 @@
 vision;%0A
-
   %7D%0A
+  %0A  // Wrapper for a byte array, needed to do byte array comparisons%0A  // See http://jira.codehaus.org/browse/ACT-1524%0A  public static class ByteArray %7B%0A    %0A    protected byte%5B%5D bytes;%0A    %0A    public ByteArray(byte%5B%5D bytes) %7B%0A      this.bytes = bytes;%0A    %7D%0A    %0A    public boolean equals(Object other) %7B%0A      if (other instanceof ByteArray) %7B%0A        ByteArray otherByteArray = (ByteArray) other;%0A        return Arrays.equals(this.bytes, otherByteArray.bytes);%0A      %7D%0A      return false;%0A    %7D%0A    %0A  %7D%0A  %0A
 %7D%0A

Fix for ACT-1524: Variable update detection does not work for byte[]