/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.jena.sparql.transaction;
import static org.apache.jena.query.ReadWrite.WRITE ;
import org.apache.jena.sparql.core.DatasetGraph ;
import org.apache.jena.sparql.core.Quad ;
import org.apache.jena.sparql.sse.SSE ;
import org.apache.jena.system.ThreadAction ;
import org.apache.jena.system.ThreadTxn ;
import org.junit.Assert ;
import org.junit.Test ;
/** Isolation tests */
public abstract class AbstractTestTransactionIsolation {
protected abstract DatasetGraph create() ;
static Quad q1 = SSE.parseQuad("(_ :s :p 111)") ;
@Test
public void isolation_01() {
// Start a read transaction on another thread.
// The transaction has begin() by the time threadTxnRead
// returns but the action of the ThreadTxn is not triggered
// until other.run() is called.
DatasetGraph dsg = create() ;
ThreadAction other = ThreadTxn.threadTxnRead(dsg, ()-> Assert.assertTrue(dsg.isEmpty()) ) ;
dsg.begin(WRITE) ;
dsg.add(q1) ;
dsg.commit() ;
dsg.end() ;
other.run() ;
}
}