oncollapsetag.java

来自「Tree taglib,生成树的标签库」· Java 代码 · 共 47 行

/*
    Copyright 2004 Jenkov Development

    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 com.jenkov.prizetags.tree.impl;

import javax.servlet.jsp.tagext.TagSupport;
import javax.servlet.jsp.JspException;


public class OnCollapseTag extends TagSupport{
    protected String collapseParam    = null;

    public String getCollapseParam() {
        if(collapseParam == null) return "collapse";
        return collapseParam;
    }

    public void setCollapseParam(String collapseParam) {
        this.collapseParam = collapseParam;
    }

    public int doStartTag() throws JspException {
        String collapseId = pageContext.getRequest().getParameter(getCollapseParam());
        if(collapseId != null){
            return EVAL_BODY_INCLUDE;
        }
        return SKIP_BODY;
    }


}