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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.queries;

import org.eclipse.persistence.descriptors.DescriptorQueryManager;
import org.eclipse.persistence.exceptions.*;
import org.eclipse.persistence.internal.sessions.AbstractRecord;
import org.eclipse.persistence.internal.sessions.AbstractSession;

/**
 * 

Purpose: * Used for inserting new objects into the database. * *

Description: * This class does not have much behavior. * It inherits most of it's behavior from WriteObjectQuery * * @author Yvon Lavoie * @since TOPLink/Java 1.0 */ public class InsertObjectQuery extends WriteObjectQuery { /** * PUBLIC: * Default constructor. */ public InsertObjectQuery() { super(); } /** * PUBLIC: * Create an insert query with the object being inserted. */ public InsertObjectQuery(Object objectToInsert) { this(); setObject(objectToInsert); } /** * PUBLIC: * Create an insert query with the custom call. */ public InsertObjectQuery(Call call) { this(); setCall(call); } /** * INTERNAL: * Perform an insert. */ public void executeCommit() throws DatabaseException { // Check for redirection. QueryRedirector localRedirector = getRedirectorForQuery(); // refactored redirection for bug 3241138 if ( localRedirector!= null) { redirectQuery(localRedirector, this, session, translationRow); return; } // Check whether the object is already being committed, // if it is and it is new, then a shallow insert must be done. if (getSession().getCommitManager().isCommitInPreModify(getObject())) { // A shallow insert must be performed. dontCascadeParts(); getQueryMechanism().insertObjectForWrite(); getSession().getCommitManager().markShallowCommit(object); } else { getQueryMechanism().insertObjectForWrite(); } } /** * INTERNAL: * Perform an insert. */ public void executeCommitWithChangeSet() throws DatabaseException { // The same commit is used for changeset or not for inserts. executeCommit(); } /** * INTERNAL: * Returns the specific default redirector for this query type. There are numerous default query redirectors. * See ClassDescriptor for their types. */ protected QueryRedirector getDefaultRedirector(){ return descriptor.getDefaultInsertObjectQueryRedirector(); } /** * INTERNAL: * Prepare the receiver for execution in a session. */ protected void prepare() { super.prepare(); if (this.name == null) { this.name = "insert" + this.descriptor.getJavaClass().getSimpleName(); } getQueryMechanism().prepareInsertObject(); } /** * INTERNAL: * Check to see if a custom query should be used for this query. * This is done before the query is copied and prepared/executed. * null means there is none. */ protected DatabaseQuery checkForCustomQuery(AbstractSession session, AbstractRecord translationRow) { checkDescriptor(session); // check if user defined a custom query DescriptorQueryManager queryManager = this.descriptor.getQueryManager(); if ((!isCallQuery())// this is not a hand-coded (custom SQL, SDK etc.) call && (!isUserDefined())// and this is not a user-defined query (in the query manager) && queryManager.hasInsertQuery()) {// and there is a user-defined query (in the query manager) return queryManager.getInsertQuery(); } return null; } /** * INTERNAL: * Set the properties needed to be cascaded into the custom query. */ protected void prepareCustomQuery(DatabaseQuery customQuery) { InsertObjectQuery customInsertQuery = (InsertObjectQuery)customQuery; customInsertQuery.setObject(getObject()); customInsertQuery.setObjectChangeSet(getObjectChangeSet()); customInsertQuery.setCascadePolicy(getCascadePolicy()); customInsertQuery.setShouldMaintainCache(shouldMaintainCache()); customInsertQuery.setModifyRow(null); } /** * PUBLIC: * Return if this is an insert object query. */ public boolean isInsertObjectQuery() { return true; } }





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