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The private implementation classes of the Apache MyFaces Core JSF-2.3-next Implementation
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.myfaces.util;
import java.util.Map;
import javax.faces.context.FacesContext;
/**
*
* This gets a single FacesContext-local shared stringbuilder instance, each
* time you call _getSharedStringBuilder it sets the length of the stringBuilder
* instance to 0.
*
* This allows you to use the same StringBuilder instance over and over. You
* must call toString on the instance before calling _getSharedStringBuilder
* again.
*
* Example that works
*
* StringBuilder sb1 = _getSharedStringBuilder();
* sb1.append(a).append(b);
* String c = sb1.toString();
*
* StringBuilder sb2 = _getSharedStringBuilder();
* sb2.append(b).append(a);
* String d = sb2.toString();
*
*
* Example that doesn't work, you must call toString on sb1 before calling
* _getSharedStringBuilder again.
*
* StringBuilder sb1 = _getSharedStringBuilder();
* StringBuilder sb2 = _getSharedStringBuilder();
*
* sb1.append(a).append(b);
* String c = sb1.toString();
*
* sb2.append(b).append(a);
* String d = sb2.toString();
*
*
*/
public class SharedStringBuilder
{
public static StringBuilder get(String stringBuilderKey)
{
return get(FacesContext.getCurrentInstance(), stringBuilderKey);
}
public static StringBuilder get(FacesContext facesContext, String stringBuilderKey)
{
Map