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/* 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 org.activiti.engine.delegate.VariableScope;

/**
 * A dummy implementation of {@link VariableInstance}, used for storing transient variables
 * on a {@link VariableScope}, as the {@link VariableScope} works with instances of {@link VariableInstance}
 * and not with raw key/values.
 * 
 * Nothing more than a thin wrapper around a name and value. All the other methods are not implemented.
 * 

 */
public class TransientVariableInstance implements VariableInstance {
  
  public static String TYPE_TRANSIENT = "transient";
  
  protected String variableName;
  protected Object variableValue;
  
  public TransientVariableInstance(String variableName, Object variableValue) {
    this.variableName = variableName;
    this.variableValue = variableValue;
  }

  @Override
  public String getName() {
    return variableName;
  }

  @Override
  public String getTextValue() {
    return null;
  }

  @Override
  public void setTextValue(String textValue) {
    
  }

  @Override
  public String getTextValue2() {
    return null;
  }

  @Override
  public void setTextValue2(String textValue2) {
    
  }

  @Override
  public Long getLongValue() {
    return null;
  }

  @Override
  public void setLongValue(Long longValue) {
    
  }

  @Override
  public Double getDoubleValue() {
    return null;
  }

  @Override
  public void setDoubleValue(Double doubleValue) {
    
  }

  @Override
  public byte[] getBytes() {
    return null;
  }

  @Override
  public void setBytes(byte[] bytes) {
    
  }

  @Override
  public Object getCachedValue() {
    return null;
  }

  @Override
  public void setCachedValue(Object cachedValue) {
    
  }

  @Override
  public String getId() {
    return null;
  }

  @Override
  public void setId(String id) {
    
  }

  @Override
  public boolean isInserted() {
    return false;
  }

  @Override
  public void setInserted(boolean inserted) {
    
  }

  @Override
  public boolean isUpdated() {
    return false;
  }

  @Override
  public void setUpdated(boolean updated) {
    
  }

  @Override
  public boolean isDeleted() {
    return false;
  }

  @Override
  public void setDeleted(boolean deleted) {
    
  }

  @Override
  public Object getPersistentState() {
    return null;
  }

  @Override
  public void setRevision(int revision) {
    
  }

  @Override
  public int getRevision() {
    return 0;
  }

  @Override
  public int getRevisionNext() {
    return 0;
  }

  @Override
  public void setName(String name) {
    
  }

  @Override
  public void setProcessInstanceId(String processInstanceId) {
    
  }

  @Override
  public void setExecutionId(String executionId) {
    
  }

  @Override
  public Object getValue() {
    return variableValue;
  }

  @Override
  public void setValue(Object value) {
    variableValue = value;
  }

  @Override
  public String getTypeName() {
    return TYPE_TRANSIENT;
  }

  @Override
  public void setTypeName(String typeName) {
    
  }

  @Override
  public String getProcessInstanceId() {
    return null;
  }

  @Override
  public String getTaskId() {
    return null;
  }

  @Override
  public void setTaskId(String taskId) {
    
  }

  @Override
  public String getExecutionId() {
    return null;
  }

}