package net.sf.saxon.xqj;
import net.sf.saxon.query.DynamicQueryContext;
import net.sf.saxon.query.StaticQueryContext;
import net.sf.saxon.query.XQueryExpression;
import net.sf.saxon.trans.XPathException;
import javax.xml.namespace.QName;
import javax.xml.xquery.XQException;
import javax.xml.xquery.XQExpression;
import javax.xml.xquery.XQResultSequence;
import javax.xml.xquery.XQStaticContext;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
/**
* Saxon implementation of the XQJ XQExpression interface
*/
public class SaxonXQExpression extends SaxonXQDynamicContext implements XQExpression {
SaxonXQStaticContext sqc;
DynamicQueryContext context;
boolean closed;
SaxonXQExpression(SaxonXQConnection connection) throws XQException {
this.connection = connection;
context = new DynamicQueryContext(connection.getConfiguration());
sqc = (SaxonXQStaticContext)connection.getStaticContext();
setClosableContainer(connection);
}
SaxonXQExpression(SaxonXQConnection connection, SaxonXQStaticContext staticContext) {
this.connection = connection;
context = new DynamicQueryContext(connection.getConfiguration());
sqc = staticContext;
setClosableContainer(connection);
}
protected DynamicQueryContext getDynamicContext() {
return context;
}
protected SaxonXQDataFactory getDataFactory() throws XQException {
return connection;
}
public void cancel() throws XQException {
checkNotClosed();
//
}
public void executeCommand(Reader command) throws XQException {
checkNotClosed();
throw new XQException("Saxon does not recognize any non-XQuery commands");
}
public void executeCommand(String command) throws XQException {
checkNotClosed();
throw new XQException("Saxon does not recognize any non-XQuery commands");
}
public XQResultSequence executeQuery(InputStream query) throws XQException {
checkNotClosed();
try {
StaticQueryContext env = sqc.getSaxonStaticQueryContext();
XQueryExpression exp = env.compileQuery(query, null);
SaxonXQPreparedExpression pe = new SaxonXQPreparedExpression(connection, exp, sqc, context);
return pe.executeQuery();
} catch (XPathException e) {
XQException xqe = new XQException(e.getMessage());
xqe.initCause(e);
throw xqe;
} catch (IOException e) {
XQException xqe = new XQException(e.getMessage());
xqe.initCause(e);
throw xqe;
}
}
public XQResultSequence executeQuery(Reader query) throws XQException {
checkNotClosed();
try {
StaticQueryContext env = sqc.getSaxonStaticQueryContext();
XQueryExpression exp = env.compileQuery(query);
SaxonXQPreparedExpression pe = new SaxonXQPreparedExpression(connection, exp, sqc, context);
return pe.executeQuery();
} catch (XPathException e) {
XQException xqe = new XQException(e.getMessage());
xqe.initCause(e);
throw xqe;
} catch (IOException e) {
XQException xqe = new XQException(e.getMessage());
xqe.initCause(e);
throw xqe;
}
}
public XQResultSequence executeQuery(String query) throws XQException {
checkNotClosed();
try {
StaticQueryContext env = sqc.getSaxonStaticQueryContext();
XQueryExpression exp = env.compileQuery(query);
SaxonXQPreparedExpression pe = new SaxonXQPreparedExpression(connection, exp, sqc, context);
XQResultSequence result = pe.executeQuery();
((Closable)result).setClosableContainer(this);
return result;
} catch (XPathException e) {
XQException xqe = new XQException(e.getMessage());
xqe.initCause(e);
throw xqe;
}
}
public XQStaticContext getStaticContext() throws XQException {
checkNotClosed();
return connection.getStaticContext();
}
protected boolean externalVariableExists(QName name) {
return true;
}
}
//
// The contents of this file are subject to the Mozilla Public License Version 1.0 (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.mozilla.org/MPL/
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied.
// See the License for the specific language governing rights and limitations under the License.
//
// The Original Code is: all this file.
//
// The Initial Developer of the Original Code is Michael H. Kay.
//
// Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved.
//
// Contributor(s):
//