/*
* eXist Open Source Native XML Database
* Copyright (C) 2008-2009 The eXist Project
* http://exist-db.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id$
*/
package org.exist.xslt.expression;
import org.exist.interpreter.ContextAtExist;
import org.exist.xquery.XPathException;
import org.exist.xquery.util.ExpressionDumper;
import org.exist.xquery.value.Item;
import org.exist.xquery.value.Sequence;
import org.exist.xslt.XSLContext;
import org.w3c.dom.Attr;
/**
* <!-- Category: declaration -->
* <xsl:function
* name = qname
* as? = sequence-type
* override? = "yes" | "no">
* <!-- Content: (xsl:param*, sequence-constructor) -->
* </xsl:function>
*
* @author <a href="mailto:shabanovd@gmail.com">Dmitriy Shabanov</a>
*
*/
public class Function extends Declaration {
private String name = null;
private String as = null;
private Boolean override = null;
public Function(XSLContext context) {
super(context);
}
public void setToDefaults() {
name = null;
as = null;
override = null;
}
public void prepareAttribute(ContextAtExist context, Attr attr) throws XPathException {
String attr_name = attr.getLocalName();
if (attr_name.equals(NAME)) {
name = attr.getValue();
} else if (attr_name.equals(AS)) {
as = attr.getValue();
} else if (attr_name.equals(OVERRIDE)) {
override = getBoolean(attr.getValue());
}
}
public Sequence eval(Sequence contextSequence, Item contextItem) throws XPathException {
throw new RuntimeException("eval(Sequence contextSequence, Item contextItem) at "+this.getClass());
}
/* (non-Javadoc)
* @see org.exist.xquery.Expression#dump(org.exist.xquery.util.ExpressionDumper)
*/
public void dump(ExpressionDumper dumper) {
dumper.display("<xsl:function");
if (name != null) {
dumper.display(" name = ");
dumper.display(name);
}
if (as != null) {
dumper.display(" as = ");
dumper.display(as);
}
if (override != null) {
dumper.display(" override = ");
dumper.display(override);
}
super.dump(dumper);
dumper.display("</xsl:function>");
}
public String toString() {
StringBuffer result = new StringBuffer();
result.append("<xsl:function");
if (name != null)
result.append(" name = "+name.toString());
if (as != null)
result.append(" as = "+as.toString());
if (override != null)
result.append(" override = "+override.toString());
result.append("> ");
result.append(super.toString());
result.append("</xsl:function> ");
return result.toString();
}
}