org.eclipse.persistence.sessions.SessionEvent Maven / Gradle / Ivy
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/*
* Copyright (c) 1998, 2018 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 v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0,
* or the Eclipse Distribution License v. 1.0 which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
*/
// Contributors:
// Oracle - initial API and implementation from Oracle TopLink
package org.eclipse.persistence.sessions;
import java.util.*;
import org.eclipse.persistence.queries.*;
/**
* Purpose: Encapsulate the information provided with session events.
* This is used as the argument to any event raised by the session.
* To register for events notification an event listener must be registered with the session.
*
* @see SessionEventManager#addListener(SessionEventListener)
* @see Session#getEventManager()
* @see SessionEventListener
*/
public class SessionEvent extends EventObject {
/** Some events may have a query associated with them (pre/postExecuteQuery). */
protected DatabaseQuery query;
/** Some events may have a result associated with them (pre/postExecuteQuery). */
protected Object result;
/** The session or unit of work raising the event. */
protected Session session;
/** The code of the event being raised. This is an integer constant value as defined below. */
protected int eventCode;
/** Additional properties may be added. */
protected Hashtable properties;
public static final int PreExecuteQuery = 1;
public static final int PostExecuteQuery = 2;
public static final int PreBeginTransaction = 3;
public static final int PostBeginTransaction = 4;
public static final int PreCommitTransaction = 5;
public static final int PostCommitTransaction = 6;
public static final int PreRollbackTransaction = 7;
public static final int PostRollbackTransaction = 8;
// Unit of work events, only raised on unit of work.
public static final int PostAcquireUnitOfWork = 9;
public static final int PreCommitUnitOfWork = 10;
public static final int PostCommitUnitOfWork = 11;
public static final int PreReleaseUnitOfWork = 12;
public static final int PostReleaseUnitOfWork = 13;
public static final int PrepareUnitOfWork = 14;
public static final int PostResumeUnitOfWork = 15;
// Three-tier events, only raised on server/client session.
public static final int PostAcquireClientSession = 16;
public static final int PreReleaseClientSession = 17;
public static final int PostReleaseClientSession = 18;
public static final int PostAcquireConnection = 22;
public static final int PostAcquireExclusiveConnection = 33;
public static final int PreReleaseConnection = 23;
public static final int PreReleaseExclusiveConnection = 34;
// Database access events.
public static final int OutputParametersDetected = 19;
public static final int MoreRowsDetected = 20;
public static final int PostConnect = 21;
// Login events
public static final int PreLogin = 24;
public static final int PostLogin = 25;
public static final int PreLogout = 40;
public static final int PostLogout = 41;
public static final int PreMergeUnitOfWorkChangeSet = 26;
public static final int PreDistributedMergeUnitOfWorkChangeSet = 27;
public static final int PostMergeUnitOfWorkChangeSet = 28;
public static final int PostDistributedMergeUnitOfWorkChangeSet = 29;
//ChangeSet Events
public static final int PreCalculateUnitOfWorkChangeSet = 30;
public static final int PostCalculateUnitOfWorkChangeSet = 31;
public static final int MissingDescriptor = 32;
public static final int NoRowsModified = 35;
// last event value for this class as of Jan 26th, 2004 is 41
/**
* INTERNAL:
* Create the event.
*/
public SessionEvent(int eventCode, Session session) {
super(session);
this.session = session;
this.eventCode = eventCode;
}
/**
* PUBLIC:
* The code of the session event being raised.
* This is an integer constant value from this class.
*/
public int getEventCode() {
return eventCode;
}
/**
* PUBLIC:
* Additional properties may be added to the event.
*/
public Hashtable getProperties() {
if (properties == null) {
properties = new Hashtable(2);
}
return properties;
}
/**
* PUBLIC:
* Additional properties may be added to the event.
*/
public Object getProperty(String name) {
return getProperties().get(name);
}
/**
* PUBLIC:
* Some events may have a query associated with them (pre/postExecuteQuery).
*/
public DatabaseQuery getQuery() {
return query;
}
/**
* PUBLIC:
* Some events may have a result associated with them (pre/postExecuteQuery).
*/
public Object getResult() {
return result;
}
/**
* PUBLIC:
* The session in which the event is raised.
*/
public Session getSession() {
return session;
}
/**
* INTERNAL:
* The code of the session event being raised.
* This is an integer constant value from this class.
*/
public void setEventCode(int eventCode) {
this.eventCode = eventCode;
}
/**
* INTERNAL:
* Additional properties may be added to the event.
*/
public void setProperties(Hashtable properties) {
this.properties = properties;
}
/**
* INTERNAL:
* Additional properties may be added to the event.
*/
public void setProperty(String name, Object value) {
getProperties().put(name, value);
}
/**
* INTERNAL:
* Some events may have a query associated with them (pre/postExecuteQuery).
*/
public void setQuery(DatabaseQuery query) {
this.query = query;
}
/**
* INTERNAL:
* Some events may have a result associated with them (pre/postExecuteQuery).
*/
public void setResult(Object result) {
this.result = result;
}
/**
* INTERNAL:
* The session in which the event is raised.
*/
public void setSession(Session session) {
this.session = session;
}
}