/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jackrabbit.jcr2spi;
import org.apache.jackrabbit.spi.Path;
import org.apache.jackrabbit.jcr2spi.hierarchy.HierarchyEntry;
import org.apache.jackrabbit.jcr2spi.hierarchy.NodeEntry;
import javax.jcr.PathNotFoundException;
import javax.jcr.RepositoryException;
import javax.jcr.ItemNotFoundException;
import javax.jcr.NodeIterator;
import javax.jcr.PropertyIterator;
import javax.jcr.Item;
import javax.jcr.Node;
import javax.jcr.Property;
/**
* There's one <code>ItemManager</code> instance per <code>Session</code>
* instance. It is the factory for <code>Node</code> and <code>Property</code>
* instances.
* <p>
* The <code>ItemManager</code>'s responsibilities are:
* <ul>
* <li>providing access to <code>Item</code> instances by <code>ItemState</code>
* whereas <code>Node</code> and <code>Item</code> are only providing relative access.
* <li>returning the instance of an existing <code>Node</code> or <code>Property</code>,
* given its absolute path.
* <li>creating the per-session instance of a <code>Node</code>
* or <code>Property</code> that doesn't exist yet and needs to be created first.
* <li>guaranteeing that there aren't multiple instances representing the same
* <code>Node</code> or <code>Property</code> associated with the same
* <code>Session</code> instance.
* <li>maintaining a cache of the item instances it created.
* </ul>
* <p>
* If the parent <code>Session</code> is an <code>XASession</code>, there is
* one <code>ItemManager</code> instance per started global transaction.
*/
public interface ItemManager {
/**
* Disposes this <code>ItemManager</code> and frees resources.
*/
public void dispose();
/**
* Checks if the node with the given path exists.
*
* @param path path to the node to be checked
* @return true if the specified item exists
* @throws RepositoryException
*/
public boolean nodeExists(Path path) throws RepositoryException;
/**
* Checks if the property with the given path exists.
*
* @param path path to the property to be checked
* @return true if the specified item exists
* @throws RepositoryException
*/
public boolean propertyExists(Path path) throws RepositoryException;
/**
* Checks if the item for given HierarchyEntry exists.
*
* @param hierarchyEntry
* @return true if the specified item exists
@throws RepositoryException
*/
public boolean itemExists(HierarchyEntry hierarchyEntry) throws RepositoryException;
/**
*
* @param path
* @return
* @throws PathNotFoundException
* @throws RepositoryException
*/
public Node getNode(Path path) throws PathNotFoundException, RepositoryException;
/**
*
* @param path
* @return
* @throws PathNotFoundException
* @throws RepositoryException
*/
public Property getProperty(Path path) throws PathNotFoundException, RepositoryException;
/**
*
* @param hierarchyEntry
* @return
* @throws ItemNotFoundException
* @throws RepositoryException
*/
public Item getItem(HierarchyEntry hierarchyEntry) throws ItemNotFoundException, RepositoryException;
/**
*
* @param parentEntry
* @return
* @throws ItemNotFoundException
* @throws RepositoryException
*/
public boolean hasChildNodes(NodeEntry parentEntry) throws ItemNotFoundException, RepositoryException;
/**
*
* @param parentEntry
* @return
* @throws ItemNotFoundException
* @throws RepositoryException
*/
public NodeIterator getChildNodes(NodeEntry parentEntry) throws ItemNotFoundException, RepositoryException;
/**
*
* @param parentEntry
* @return
* @throws ItemNotFoundException
* @throws RepositoryException
*/
public boolean hasChildProperties(NodeEntry parentEntry) throws ItemNotFoundException, RepositoryException;
/**
*
* @param parentEntry
* @return
* @throws ItemNotFoundException
* @throws RepositoryException
*/
public PropertyIterator getChildProperties(NodeEntry parentEntry) throws ItemNotFoundException, RepositoryException;
}