exampletagbase.java

来自「jsp网络编程最好的学习源代码」· Java 代码 · 共 67 行

/*
* Copyright 2004 The Apache Software Foundation
*
* Licensed 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 examples;

import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;

public abstract class ExampleTagBase extends BodyTagSupport {

    public void setParent(Tag parent) {
        this.parent = parent;
    }

    public void setBodyContent(BodyContent bodyOut) {
        this.bodyOut = bodyOut;
    }

    public void setPageContext(PageContext pageContext) {
        this.pageContext = pageContext;
    }

    public Tag getParent() {
        return this.parent;
    }
    
    public int doStartTag() throws JspException {
        return SKIP_BODY;
    }

    public int doEndTag() throws JspException {
        return EVAL_PAGE;
    }
    

    // Default implementations for BodyTag methods as well
    // just in case a tag decides to implement BodyTag.
    public void doInitBody() throws JspException {
    }

    public int doAfterBody() throws JspException {
        return SKIP_BODY;
    }

    public void release() {
        bodyOut = null;
        pageContext = null;
        parent = null;
    }
    
    protected BodyContent bodyOut;
    protected PageContext pageContext;
    protected Tag parent;
}