content: /*******************************************************************************
   * Copyright (c) 2000, 2008 IBM Corporation 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
   *
   * Contributors:
   *     IBM Corporation - initial API and implementation
   *******************************************************************************/
  
  package org.eclipse.wst.jsdt.internal.corext.refactoring.typeconstraints2;
  
  import org.eclipse.wst.jsdt.core.IJavaScriptUnit;
  import org.eclipse.wst.jsdt.core.dom.IVariableBinding;
  import org.eclipse.wst.jsdt.internal.corext.refactoring.typeconstraints.types.TType;
  
  /**
   * A VariableVariable is a ConstraintVariable which stands for
   * the type of a variable, namely a field or a local variable
   * Use {@link ParameterTypeVariable2} for method parameters).
   */
  public final class VariableVariable2 extends ConstraintVariable2 implements ISourceConstraintVariable {
  
  	private final String fKey;
  	private IJavaScriptUnit fCompilationUnit;
  	
  	public VariableVariable2(TType type, IVariableBinding binding) {
  		super(type);
  		fKey= binding.getKey();
  	}
  
  	public void setCompilationUnit(IJavaScriptUnit unit) {
  		fCompilationUnit= unit;
  	}
  	
  	public IJavaScriptUnit getCompilationUnit() {
  		return fCompilationUnit;
  	}
  
  	public String getKey() {
  		return fKey;
  	}
  
  	/*
  	 * @see java.lang.Object#hashCode()
  	 */
  	public int hashCode() {
  		return fKey.hashCode();
  	}
  
  	/*
  	 * @see java.lang.Object#equals(java.lang.Object)
  	 */
  	public boolean equals(Object other) {
  		if (this == other)
  			return true;
  		if (other.getClass() != VariableVariable2.class)
  			return false;
  		
  		return fKey.equals(((VariableVariable2) other).getKey());
  	}
  }
  