QualifiedName.java

/*
Copyright (c) 2008 Andr� Arnold.
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:
    Andr� Arnold - initial API and implementation
 */
package org.eclipse.xtend.backend.common;

/**
 * 
 * @author Andr� Arnold
 *
 */
public class QualifiedName {

	private final String _simpleName;
	
	private final String _nameSpace;
	
	public QualifiedName (String fullQualifiedName) {
		int sepPos = fullQualifiedName.lastIndexOf (SyntaxConstants.NS_DELIM);
		if (sepPos > -1) {
			_simpleName = fullQualifiedName.substring (sepPos + SyntaxConstants.NS_DELIM.length() );
			_nameSpace = fullQualifiedName.substring (0, sepPos);
		} else {
			_simpleName = fullQualifiedName;
			_nameSpace = null;
		}
	}

	public QualifiedName (String nameSpace, String simpleName) {
		super();
		_simpleName = simpleName;
		_nameSpace = nameSpace;
	}

	public String getSimpleName () {
		return _simpleName;
	}

	public String getNameSpace () {
		return _nameSpace;
	}
	
	public String getFullQualifiedName () {
		if (_nameSpace != null) 
			return _nameSpace + SyntaxConstants.NS_DELIM + _simpleName;
		else
			return _simpleName;
	}

	@Override
	public int hashCode () {
		final int prime = 31;
		int result = 1;
		result = prime * result
				+ ((_nameSpace == null) ? 0 : _nameSpace.hashCode());
		result = prime * result
				+ ((_simpleName == null) ? 0 : _simpleName.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		QualifiedName other = (QualifiedName) obj;
		if (_nameSpace == null) {
			if (other._nameSpace != null)
				return false;
		} else if (!_nameSpace.equals (other._nameSpace))
			return false;
		if (_simpleName == null) {
			if (other._simpleName != null)
				return false;
		} else if (!_simpleName.equals(other._simpleName))
			return false;
		return true;
	}
	
	@Override
	public String toString () {
		return getFullQualifiedName ();
	}

}