org.modeshape.jcr.federation.spi.package-info Maven / Gradle / Ivy
/*
* ModeShape (http://www.modeshape.org)
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
* See the AUTHORS.txt file in the distribution for a full listing of
* individual contributors.
*
* ModeShape is free software. Unless otherwise indicated, all code in ModeShape
* is licensed to you under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* ModeShape 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
/**
* This package provides a Service Provider Interface (SPI) for connectors to external systems. The ModeShape federation system
* uses these {@link org.modeshape.jcr.federation.spi.Connector} implementations to enable a repository to access external systems
* and project the external information as structured nodes within the repository. External sources are configured in the
* {@link org.modeshape.jcr.RepositoryConfiguration repository configuration JSON file} to use a specific
* {@link org.modeshape.jcr.federation.spi.Connector} implementation (including connector-specific configuration properties),
* while the projections that define how and where the external content is bound into the repository content are created using the
* {@link org.modeshape.jcr.api.federation.FederationManager}:
*
* javax.jcr.Session jcrSession = ...
* Session session = (org.modeshape.jcr.api.Session)jcrSession;
* FederationManager fedMgr = session.getWorkspace().getFederationManager();
*
* javax.jcr.Node parentNode = ... // the parent of the federated content
* String parentPath = parentNode.getPath();
* String sourceName = ... // the name of the external source
* String externalPath = ... // the path of the node in the external source that is to appear as a child of 'parentNode'
* String alias = ... // Optional alias for the external node
* fedMgr.createExternalProjection(parentPath, sourceName, externalPath, alias);
*
*
* To create a custom connector, simply create a {@link org.modeshape.jcr.federation.spi.Connector} subclass
* and implement the necessary methods. If your connector is only to read information and never will update any external content,
* you can instead subclass the {@link org.modeshape.jcr.federation.spi.ReadOnlyConnector} class, which implements the methods
* used to create/update/delete content by throwing the proper exception.
*
*/
package org.modeshape.jcr.federation.spi;
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