/******************************************************************************* | |
* Copyright (c) 1998, 2013 Oracle and/or its affiliates. All rights reserved. | |
* This program and the accompanying materials are made available under the | |
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0 | |
* which accompanies this distribution. | |
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html | |
* and the Eclipse Distribution License is available at | |
* http://www.eclipse.org/org/documents/edl-v10.php. | |
* | |
* Contributors: | |
* Oracle - initial API and implementation from Oracle TopLink | |
******************************************************************************/ | |
package org.eclipse.persistence.testing.tests.queries; | |
import java.util.*; | |
import org.eclipse.persistence.testing.framework.*; | |
import org.eclipse.persistence.queries.*; | |
/** | |
* Test direct read queries with various container policies. | |
*/ | |
public class DirectReadQueryTest1 extends TestCase { | |
Stack stack; | |
public DirectReadQueryTest1() { | |
setDescription("This tests direct read queries with various container policies."); | |
} | |
public DirectReadQuery buildNewQuery() { | |
return new DirectReadQuery("select L_NAME from EMPLOYEE"); | |
} | |
public void test() { | |
this.testStackContainerPolicy(); | |
this.testCursoredStreamPolicy(); | |
} | |
/** | |
* assume the stack has already been populated by the previous test | |
*/ | |
public void testCursoredStreamPolicy() { | |
ValueReadQuery sizeQuery = new ValueReadQuery("select count(*) from EMPLOYEE"); | |
DirectReadQuery query = this.buildNewQuery(); | |
query.useCursoredStream(5, 5, sizeQuery); | |
CursoredStream stream = (CursoredStream) getSession().executeQuery(query); | |
// if we get here, we must not have generated a ClassCastException | |
int count = 0; | |
while (stream.hasMoreElements()) { | |
count++; | |
String lastName = (String) stream.nextElement(); | |
if (lastName.length() == 0) { | |
throw new TestErrorException("missing data"); | |
} | |
} | |
if (count != stack.size()) { | |
throw new TestErrorException("stream does not match stack - " | |
+ "expected: " + stack.size() + " actual: " + count); | |
} | |
} | |
public void testStackContainerPolicy() { | |
DirectReadQuery query = this.buildNewQuery(); | |
query.useCollectionClass(Stack.class); | |
stack = (Stack)getSession().executeQuery(query); | |
// if we get here, we must not have generated a ClassCastException | |
String lastName = (String)stack.peek(); | |
if (lastName.length() == 0) { | |
throw new TestErrorException("missing data"); | |
} | |
} | |
} |