/*
* $Id: TagLibrary.java 651946 2008-04-27 13:41:38Z apetrelli $
*
* 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.struts2.views;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.opensymphony.xwork2.util.ValueStack;
/**
* Provides Velocity and Freemarker implementation classes for a tag library
*/
public interface TagLibrary {
/**
* Gets a Java object that contains getters for the tag library's Freemarker models.
* Called once per Freemarker template processing.
*
* @param stack The current value stack
* @param req The HTTP request
* @param res The HTTP response
* @return The Java object containing the Freemarker model getter methods
*/
public Object getFreemarkerModels(ValueStack stack, HttpServletRequest req, HttpServletResponse res);
/**
* Gets a list of Velocity directive classes for the tag library. Called once on framework
* startup when initializing Velocity.
*
* @return A list of Velocity directive classes
*/
public List<Class> getVelocityDirectiveClasses();
}
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