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93 lines
2.7 KiB
93 lines
2.7 KiB
/*
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* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*/
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/*
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* Copyright 1999-2004 The Apache Software Foundation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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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/*
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* $Id: FuncConcat.java,v 1.2.4.1 2005/09/14 19:53:44 jeffsuttor Exp $
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*/
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package com.sun.org.apache.xpath.internal.functions;
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import com.sun.org.apache.xalan.internal.res.XSLMessages;
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import com.sun.org.apache.xpath.internal.XPathContext;
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import com.sun.org.apache.xpath.internal.objects.XObject;
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import com.sun.org.apache.xpath.internal.objects.XString;
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/**
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* Execute the Concat() function.
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* @xsl.usage advanced
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*/
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public class FuncConcat extends FunctionMultiArgs
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{
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static final long serialVersionUID = 1737228885202314413L;
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/**
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* Execute the function. The function must return
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* a valid object.
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* @param xctxt The current execution context.
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* @return A valid XObject.
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*
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* @throws javax.xml.transform.TransformerException
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*/
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public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException
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{
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StringBuffer sb = new StringBuffer();
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// Compiler says we must have at least two arguments.
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sb.append(m_arg0.execute(xctxt).str());
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sb.append(m_arg1.execute(xctxt).str());
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if (null != m_arg2)
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sb.append(m_arg2.execute(xctxt).str());
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if (null != m_args)
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{
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for (int i = 0; i < m_args.length; i++)
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{
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sb.append(m_args[i].execute(xctxt).str());
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}
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}
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return new XString(sb.toString());
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}
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/**
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* Check that the number of arguments passed to this function is correct.
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*
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*
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* @param argNum The number of arguments that is being passed to the function.
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*
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* @throws WrongNumberArgsException
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*/
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public void checkNumberArgs(int argNum) throws WrongNumberArgsException
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{
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if (argNum < 2)
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reportWrongNumberArgs();
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}
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/**
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* Constructs and throws a WrongNumberArgException with the appropriate
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* message for this function object.
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*
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* @throws WrongNumberArgsException
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*/
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protected void reportWrongNumberArgs() throws WrongNumberArgsException {
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throw new WrongNumberArgsException(XSLMessages.createXPATHMessage("gtone", null));
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}
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}
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