/*
* Copyright 2005 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jdo.tck.query.api;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import java.util.List;
import javax.jdo.PersistenceManager;
import javax.jdo.Query;
import javax.jdo.Transaction;
import org.apache.jdo.tck.JDO_Test;
import org.apache.jdo.tck.pc.mylib.PCPoint;
import org.apache.jdo.tck.query.QueryTest;
import org.apache.jdo.tck.util.BatchTestRunner;
/**
*<B>Title:</B> New Query From Existing Serialized Query
*<BR>
*<B>Keywords:</B> query
*<BR>
*<B>Assertion ID:</B> A14.5-2.
*<BR>
*<B>Assertion Description: </B> <code>PersistenceManager.newQuery(Object query)</code> constructs a <code>Query</code> instance from another query, where the parameter is a serialized/re-stored <code>Query</code> instance from the same JDO vendor but a different execution environment. Any of the elements Class, Filter, Import declarations, Variable declarations, Parameter declarations, and Ordering from the parameter <code>Query</code> are copied to the new <code>Query</code> instance, but a candidate <code>Collection</code> or <code>Extent</code> element is discarded.
*/
public class NewQueryFromRestoredSerializedQuery extends QueryTest {
/** */
private static final String ASSERTION_FAILED =
"Assertion A14.5-2 (NewQueryFromRestoredSerializedQuery) failed: ";
/**
* The <code>main</code> is called when the class
* is directly executed from the command line.
* @param args The arguments passed to the program.
*/
public static void main(String[] args) {
BatchTestRunner.run(NewQueryFromRestoredSerializedQuery.class);
}
/** */
public void testPositive() throws Exception {
PersistenceManager pm = getPM();
if (debug)
logger.debug("\nExecuting test NewQueryFromRestoredSerializedQuery01() ...");
Transaction tx = pm.currentTransaction();
try {
tx.begin();
Query query = pm.newQuery();
query.setClass(PCPoint.class);
query.setCandidates(pm.getExtent(PCPoint.class, false));
query.setFilter("x == 3");
query.compile();
ObjectOutputStream oos = null;
try {
if (debug)
logger.debug("Attempting to serialize Query object.");
oos = new ObjectOutputStream( new FileOutputStream(SERIALZED_QUERY));
oos.writeObject(query);
if (debug) logger.debug("Query object serialized.");
}
finally {
if (oos != null) {
try { oos.flush();} catch(Exception ex) {}
try { oos.close();} catch(Exception ex) {}
}
}
ObjectInputStream in =
new ObjectInputStream(new FileInputStream(SERIALZED_QUERY));
Query query1 = (Query)in.readObject();
// init and execute query
query = pm.newQuery(query1);
query.setCandidates(pm.getExtent(PCPoint.class, false));
Object results = query.execute();
// check query result
List expected = new ArrayList();
Object p4 = new PCPoint(3, 3);
expected.add(p4);
expected = getFromInserted(expected);
printOutput(results, expected);
checkQueryResultWithoutOrder(ASSERTION_FAILED, "x == 3",
results, expected);
if (debug)
logger.debug("Test NewQueryFromRestoredSerializedQuery01(): Passed");
tx.commit();
tx = null;
}
finally {
if ((tx != null) && tx.isActive())
tx.rollback();
}
}
/**
* @see JDO_Test#localSetUp()
*/
protected void localSetUp() {
addTearDownClass(PCPoint.class);
loadAndPersistPCPoints(getPM());
}
}