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git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@3659 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
92 lines
3.2 KiB
Java
92 lines
3.2 KiB
Java
/*
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* Copyright (C) 2005 Alfresco, Inc.
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*
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* Licensed under the Mozilla Public License version 1.1
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* with a permitted attribution clause. You may obtain a
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* copy of the License at
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*
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* http://www.alfresco.org/legal/license.txt
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific
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* language governing permissions and limitations under the
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* License.
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*/
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package org.alfresco.service.transaction;
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import javax.transaction.UserTransaction;
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import org.alfresco.service.NotAuditable;
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import org.alfresco.service.PublicService;
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/**
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* Contract for retrieving access to a user transaction.
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* <p>
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* Note that the implementation of the {@link javax.transaction.UserTransaction}
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* is not able to provide the full set of status codes available on the
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* {@link javax.transaction.Status} class.
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*
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* @author David Caruana
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*/
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@PublicService
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public interface TransactionService
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{
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/**
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* Determine if ALL user transactions will be read-only.
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*
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* @return Returns true if all transactions are read-only.
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*/
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@NotAuditable
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public boolean isReadOnly();
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/**
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* Gets a user transaction that supports transaction propagation.
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* This is like the EJB <b>REQUIRED</b> transaction attribute.
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*
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* @return the user transaction
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*/
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@NotAuditable
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UserTransaction getUserTransaction();
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/**
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* Gets a user transaction that supports transaction propagation.
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* This is like the EJB <b>REQUIRED</b> transaction attribute.
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*
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* @param readOnly Set true for a READONLY transaction instance, false otherwise.
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* Note that it is not <i>always</i> possible to force a write transaction if the
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* system is in read-only mode.
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* @return the user transaction
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*/
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@NotAuditable
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UserTransaction getUserTransaction(boolean readOnly);
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/**
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* Gets a user transaction that ensures a new transaction is created.
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* Any enclosing transaction is not propagated.
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* This is like the EJB <b>REQUIRES_NEW</b> transaction attribute -
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* when the transaction is started, the current transaction will be
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* suspended and a new one started.
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*
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* @return Returns a non-propagating user transaction
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*/
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@NotAuditable
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UserTransaction getNonPropagatingUserTransaction();
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/**
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* Gets a user transaction that ensures a new transaction is created.
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* Any enclosing transaction is not propagated.
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* This is like the EJB <b>REQUIRES_NEW</b> transaction attribute -
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* when the transaction is started, the current transaction will be
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* suspended and a new one started.
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*
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* @param readOnly Set true for a READONLY transaction instance, false otherwise.
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* Note that it is not <i>always</i> possible to force a write transaction if the
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* system is in read-only mode.
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* @return Returns a non-gating user transaction
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*/
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@NotAuditable
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UserTransaction getNonPropagatingUserTransaction(boolean readOnly);
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}
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