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• ContainerTransactionManager.java

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com.sap.cds.transaction.spi.ContainerTransactionManager Maven / Gradle / Ivy

/*******************************************************************
 * © 2019 SAP SE or an SAP affiliate company. All rights reserved. *
 *******************************************************************/
package com.sap.cds.transaction.spi;

import com.sap.cds.transaction.RollbackException;
import com.sap.cds.transaction.TransactionManager;
import com.sap.cds.transaction.TransactionRequiredException;

/**
 * A ContainerTransactionManager is a thread-safe API that allows to manage
 * transactions of an underlying data source.
 */
public interface ContainerTransactionManager extends TransactionManager {

	/**
	 * Start a transaction on the managed data source
	 */
	void begin();

	/**
	 * If there is an active transaction commit it.
	 *
	 * @throws TransactionRequiredException if there is no active transaction
	 * @throws RollbackException            if the transaction has been rolled back
	 */
	void commit();

	/**
	 * If there is an active transaction roll it back.
	 *
	 * @throws TransactionRequiredException if there is no active transaction
	 */
	void rollback();

	/**
	 * True, if the transaction manager was marked for rollback only for the currently active transaction
	 *
	 * @return true if {@link #setRollbackOnly()} was called for the transaction, false otherwise
	 */
	boolean isRollbackOnly();

}