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Hibernate example source code file (ReplicationMode.java)
The Hibernate ReplicationMode.java source code/* * Hibernate, Relational Persistence for Idiomatic Java * * Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as * indicated by the @author tags or express copyright attribution * statements applied by the authors. All third-party contributions are * distributed under license by Red Hat Middleware LLC. * * This copyrighted material is made available to anyone wishing to use, modify, * copy, or redistribute it subject to the terms and conditions of the GNU * Lesser General Public License, as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this distribution; if not, write to: * Free Software Foundation, Inc. * 51 Franklin Street, Fifth Floor * Boston, MA 02110-1301 USA * */ package org.hibernate; import org.hibernate.type.VersionType; /** * Represents a replication strategy. * * @author Gavin King * @see Session#replicate(Object, ReplicationMode) */ public enum ReplicationMode { /** * Throw an exception when a row already exists. */ EXCEPTION { public boolean shouldOverwriteCurrentVersion(Object entity, Object currentVersion, Object newVersion, VersionType versionType) { throw new AssertionFailure( "should not be called" ); } }, /** * Ignore replicated entities when a row already exists. */ IGNORE { public boolean shouldOverwriteCurrentVersion(Object entity, Object currentVersion, Object newVersion, VersionType versionType) { return false; } }, /** * Overwrite existing rows when a row already exists. */ OVERWRITE { public boolean shouldOverwriteCurrentVersion(Object entity, Object currentVersion, Object newVersion, VersionType versionType) { return true; } }, /** * When a row already exists, choose the latest version. */ LATEST_VERSION { public boolean shouldOverwriteCurrentVersion(Object entity, Object currentVersion, Object newVersion, VersionType versionType) { if ( versionType == null ) { return true; //always overwrite nonversioned data } return versionType.getComparator().compare( currentVersion, newVersion ) <= 0; } }; public abstract boolean shouldOverwriteCurrentVersion(Object entity, Object currentVersion, Object newVersion, VersionType versionType); } Other Hibernate examples (source code examples)Here is a short list of links related to this Hibernate ReplicationMode.java source code file: |
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