| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2002-2003 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xalan" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 2002, International |
| * Business Machines Corporation., http://www.ibm.com. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| package org.apache.xpath.impl; |
| |
| import org.apache.xml.QName; |
| import org.apache.xpath.expression.Expr; |
| import org.apache.xpath.expression.FunctionCall; |
| import org.apache.xpath.impl.parser.Node; |
| import org.apache.xpath.impl.parser.SimpleNode; |
| import org.apache.xpath.impl.parser.XPath; |
| import org.apache.xpath.impl.parser.XPathTreeConstants; |
| |
| /** |
| * Default implementation of function call expression type. |
| */ |
| public class FunctionCallImpl extends OperatorImpl implements FunctionCall { |
| |
| // TODO: Define (at least) two functions: id and key (used for patterns) |
| |
| /** |
| * Name of the function |
| */ |
| QName m_qname; |
| |
| // Constructors |
| |
| /** |
| * Constructor for FunctionCallImpl. |
| * @param i |
| */ |
| public FunctionCallImpl(int i) { |
| super(i); |
| } |
| |
| /** |
| * Constructor for FunctionCallImpl. |
| * @param p |
| * @param i |
| */ |
| public FunctionCallImpl(XPath p, int i) { |
| super(p, i); |
| } |
| |
| /** |
| * Constructor for FunctionCallImpl with specified name |
| */ |
| protected FunctionCallImpl(QName name) |
| { |
| super(XPathTreeConstants.JJTFUNCTIONCALL); |
| |
| m_qname = name; |
| } |
| |
| |
| /** |
| * Clone FunctionCall |
| */ |
| private FunctionCallImpl(FunctionCallImpl original) |
| { |
| super(original); |
| |
| m_qname = original.m_qname; |
| } |
| |
| // Implements FunctionCall |
| |
| /** |
| * @see org.apache.xpath.expression.FunctionCall#getFunctionName() |
| */ |
| public QName getFunctionQName() { |
| return m_qname; |
| } |
| |
| /** |
| * @see org.apache.xpath.impl.parser.Node#jjtAddChild(Node, int) |
| */ |
| final public void jjtAddChild(Node n, int i) { |
| |
| if (n.getId() == XPathTreeConstants.JJTQNAMELPAR) { |
| m_qname = ((org.apache.xpath.impl.parser.QNameWrapper) n).getQName(); |
| } else { |
| // parameter |
| // -1 because of QNAMELPAR |
| if (((SimpleNode) n).canBeReduced()) { |
| super.jjtAddChild(n.jjtGetChild(0), i - 1); |
| } else { |
| super.jjtAddChild(n, i - 1); |
| } |
| } |
| |
| } |
| /** |
| * @see org.apache.xpath.impl.ExprImpl#getString(StringBuffer, boolean) |
| */ |
| public void getString(StringBuffer expr, boolean abbreviate) { |
| expr.append(m_qname.toString()); |
| expr.append('('); |
| int size = getOperandCount(); |
| for (int i = 0; i < size; i++) { |
| ((ExprImpl) getOperand(i)).getString(expr, abbreviate); |
| if (i < size - 1) { |
| expr.append(','); |
| } |
| } |
| expr.append(')'); |
| |
| } |
| |
| /** |
| * @see org.apache.xpath.expression.Expr#getExprType() |
| */ |
| public short getExprType() { |
| return FUNCTION_CALL_EXPR; |
| } |
| |
| /** |
| * @see org.apache.xpath.expression.OperatorExpr#getOperand(int) |
| */ |
| public Expr getOperand(int i) { |
| return (Expr) m_children[i]; |
| } |
| |
| /** |
| * @see org.apache.xpath.expression.OperatorExpr#getOperandCount() |
| */ |
| public int getOperandCount() { |
| return (m_children == null) ? 0 : m_children.length; |
| } |
| |
| /** |
| * @see org.apache.xpath.impl.OperatorImpl#getOperatorChar() |
| */ |
| protected String getOperatorChar() { |
| return ","; |
| } |
| |
| /** |
| * @see org.apache.xpath.expression.OperatorExpr#getOperatorType() |
| */ |
| public short getOperatorType() { |
| return COMMA; |
| } |
| |
| public Expr cloneExpression() { |
| return new FunctionCallImpl(this); |
| } |
| |
| } |