content: /*******************************************************************************
   * Copyright (c) 2000, 2007 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.nls;
  
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  
  import org.eclipse.core.runtime.Assert;
  
  
  public class NLSLine {
  
  	private int fLineNumber;
  	private List fElements;
  
  	public NLSLine(int lineNumber) {
  		fLineNumber= lineNumber;
  		Assert.isTrue(fLineNumber >= 0);
  		fElements= new ArrayList();
  	}
  	
  	public int getLineNumber() {
  		return fLineNumber;
  	}
  	
  	/**
  	 * Adds a NLS element to this line.
  	 */
  	public void add(NLSElement element) {
  		Assert.isNotNull(element);
  		fElements.add(element);
  	}
  	
  	public NLSElement[] getElements() {
  		return (NLSElement[]) fElements.toArray(new NLSElement[fElements.size()]);
  	}
  	
  	public NLSElement get(int index) {
  		return (NLSElement)fElements.get(index);
  	}
  	
  	public boolean exists(int index) {
  		return index >= 0 && index < fElements.size();
  	}
  	
  	public int size(){
  		return fElements.size();
  	}
  	
  	/* non javaDoc
  	 * only for debugging
  	 * @see Object#toString()
  	 */
  	public String toString() {
  		StringBuffer result= new StringBuffer();
  		result.append("Line: " + fLineNumber + "\n"); //$NON-NLS-2$ //$NON-NLS-1$
  		for (Iterator iter= fElements.iterator(); iter.hasNext(); ) {
  			result.append("\t"); //$NON-NLS-1$
  			result.append(iter.next().toString());
  			result.append("\n"); //$NON-NLS-1$
  		}
  		return result.toString();
  	}
  }
  
  