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package oracle.toplink.essentials.queryframework;

import oracle.toplink.essentials.exceptions.*;
import oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl;

/**
 * 

Purpose: * Concrete class used for executing non selecting SQL strings. * *

Responsibilities: *

    *
  • Execute a non selecting raw SQL string. *
* * @author Yvon Lavoie * @since TOPLink/Java 1.0 */ public class DataModifyQuery extends ModifyQuery { public DataModifyQuery() { super(); } public DataModifyQuery(String sqlString) { this(); setSQLString(sqlString); } public DataModifyQuery(Call call) { this(); setCall(call); } /** * INTERNAL: * Perform the work to execute the SQL call. * Return the row count of the number of rows effected by the SQL call. */ public Object executeDatabaseQuery() throws DatabaseException { /* Fix to allow executing non-selecting SQL in a UnitOfWork. - RB */ if (getSession().isUnitOfWork()) { UnitOfWorkImpl unitOfWork = (UnitOfWorkImpl)getSession(); /* bug:4211104 for DataModifyQueries executed during an event, while transaction was started by the uow*/ if ( !unitOfWork.getCommitManager().isActive() && !unitOfWork.isInTransaction()) { unitOfWork.beginEarlyTransaction(); } unitOfWork.setWasNonObjectLevelModifyQueryExecuted(true); } return getQueryMechanism().executeNoSelect(); } /** * PUBLIC: * Return if this is a data modify query. */ public boolean isDataModifyQuery() { return true; } /** * INTERNAL: * Prepare the receiver for execution in a session. */ protected void prepare() { super.prepare(); getQueryMechanism().prepareExecuteNoSelect(); } /** * INTERNAL: * Prepare the receiver for execution in a session. In particular, * set the descriptor of the receiver to the Descriptor for the * appropriate class for the receiver's object. */ public void prepareForExecution() throws QueryException { super.prepareForExecution(); setModifyRow(getTranslationRow()); } }




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