72 lines
2.9 KiB
Java
72 lines
2.9 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* $Header:$
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*/
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package org.apache.beehive.netui.tags.html;
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import javax.servlet.jsp.JspException;
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/**
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* Abstract base class extending the <code>HtmlDataSourceTag</code> and adding support
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* for the <code>defaultValue</code> attribute.
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*/
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abstract public class HtmlDefaultableDataSourceTag
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extends HtmlDataSourceTag
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{
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protected Object _defaultValue; // A String that contains or references the data to render for the default value of this tag.
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/**
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* Sets the default value (can be an expression).
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* @param defaultValue the default value
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* @jsptagref.attributedescription <p><b>Use in <netui:checkBoxGroup>, <netui:checkBox>,
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* <netui:radioButtonGroup>, and <netui:select> tags</b></p>
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* <p>Sets the preselected value or values.
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* <p>The <code>defaultValue</code> attribute takes either a String literal or
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* a data binding expression.
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* <p>If the <code>defaultValue</code> attribute has a String value (or if
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* the data binding expression points to a String), then a single value
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* will be preselected.
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* <p>If the <code>defaultValue</code> attribute points to a String[] object
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* (or any object which can be iterated over), then
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* multiple values will be preselected.
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*
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*
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* <p><b>Use in <netui:textArea> and <netui:textBox> tags</b></p>
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* <p>Sets the initial display text.</p>
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* <p>The <code>defaultValue</code> attribute takes either a String literal or
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* a data binding expression that points to a String.
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* @jsptagref.databindable Read / Write
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* @jsptagref.attributesyntaxvalue <i>string_or_expression_default</i>
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* @netui:attribute required="false" rtexprvalue="true" type="java.lang.Object"
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* description="Sets the default value of the control which is used if the object bound to is null."
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*/
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public void setDefaultValue(Object defaultValue)
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throws JspException
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{
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_defaultValue = defaultValue;
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}
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/**
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* Release any acquired resources.
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*/
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protected void localRelease()
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{
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super.localRelease();
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_defaultValue = null;
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}
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}
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