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/*******************************************************************************
* Copyright (c) 2011 - 2013 Oracle Corporation. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Linda DeMichiel - Java Persistence 2.1
*
******************************************************************************/
package javax.persistence;
import javax.persistence.metamodel.Attribute;
import java.util.List;
/**
* This type represents a subgraph for an attribute node that
* corresponds to a Managed Type. Using this class, an entity subgraph
* can be embedded within an EntityGraph.
*
* @param The type of the attribute.
*
* @see EntityGraph
* @see AttributeNode
* @see NamedSubgraph
*
* @since Java Persistence 2.1
*/
public interface Subgraph {
/**
* Add one or more attribute nodes to the entity graph.
*
* @param attributeName name of the attribute
* @throws IllegalArgumentException if the attribute is not an
* attribute of this managed type.
* @throws IllegalStateException if the EntityGraph has been
* statically defined
*/
public void addAttributeNodes(String ... attributeName);
/**
* Add one or more attribute nodes to the entity graph.
* @param attribute attribute
*
* @throws IllegalStateException if this EntityGraph has been
* statically defined
*/
public void addAttributeNodes(Attribute ... attribute);
/**
* Add a node to the graph that corresponds to a managed
* type. This allows for construction of multi-node entity graphs
* that include related managed types.
*
* @param attribute attribute
* @return subgraph for the attribute
* @throws IllegalArgumentException if the attribute's target
* type is not a managed type
* @throws IllegalStateException if the EntityGraph has been
* statically defined
*/
public Subgraph addSubgraph(Attribute attribute);
/**
* Add a node to the graph that corresponds to a managed
* type with inheritance. This allows for multiple subclass
* subgraphs to be defined for this node of the entity
* graph. Subclass subgraphs will automatically include the specified
* attributes of superclass subgraphs
*
* @param attribute attribute
* @param type entity subclass
* @return subgraph for the attribute
* @throws IllegalArgumentException if the attribute's target
* type is not a managed type
* @throws IllegalStateException if this EntityGraph has been
* statically defined
*/
public Subgraph addSubgraph(Attribute attribute, Class type);
/**
* Add a node to the graph that corresponds to a managed
* type. This allows for construction of multi-node entity graphs
* that include related managed types.
*
* @param attributeName name of the attribute
* @return subgraph for the attribute
* @throws IllegalArgumentException if the attribute is not an
* attribute of this managed type.
* @throws IllegalArgumentException if the attribute's target
* type is not a managed type
* @throws IllegalStateException if this EntityGraph has been
* statically defined
*/
public Subgraph addSubgraph(String attributeName);
/**
* Add a node to the graph that corresponds to a managed
* type with inheritance. This allows for multiple subclass
* subgraphs to be defined for this node of the entity
* graph. Subclass subgraphs will automatically include the
* specified attributes of superclass subgraphs
*
* @param attributeName name of the attribute
* @param type entity subclass
* @return subgraph for the attribute
* @throws IllegalArgumentException if the attribute is not
* an attribute of this managed type.
* @throws IllegalArgumentException if the attribute's target
* type is not a managed type
* @throws IllegalStateException if this EntityGraph has been
* statically defined
*/
public Subgraph addSubgraph(String attributeName, Class type);
/**
* Add a node to the graph that corresponds to a map key
* that is a managed type. This allows for construction of
* multinode entity graphs that include related managed types.
*
* @param attribute attribute
* @return subgraph for the key attribute
* @throws IllegalArgumentException if the attribute's target
* type is not a managed type entity
* @throws IllegalStateException if this EntityGraph has been
* statically defined
*/
public Subgraph addKeySubgraph(Attribute attribute);
/**
* Add a node to the graph that corresponds to a map key
* that is a managed type with inheritance. This allows for
* construction of multi-node entity graphs that include related
* managed types. Subclass subgraphs will automatically include
* the specified attributes of superclass subgraphs
*
* @param attribute attribute
* @param type entity subclass
* @return subgraph for the attribute
* @throws IllegalArgumentException if the attribute's target
* type is not a managed type entity
* @throws IllegalStateException if this EntityGraph has been
* statically defined
*/
public Subgraph addKeySubgraph(Attribute attribute, Class type);
/**
* Add a node to the graph that corresponds to a map key
* that is a managed type. This allows for construction of
* multi-node entity graphs that include related managed types.
*
* @param attributeName name of the attribute
* @return subgraph for the key attribute
* @throws IllegalArgumentException if the attribute is not an
* attribute of this entity.
* @throws IllegalArgumentException if the attribute's target
* type is not a managed type
* @throws IllegalStateException if this EntityGraph has been
* statically defined
*/
public Subgraph addKeySubgraph(String attributeName);
/**
* Add a node to the graph that corresponds to a map key
* that is a managed type with inheritance. This allows for
* construction of multi-node entity graphs that include related
* managed types. Subclass subgraphs will include the specified
* attributes of superclass subgraphs
*
* @param attributeName name of the attribute
* @param type entity subclass
* @return subgraph for the attribute
* @throws IllegalArgumentException if the attribute is not an
* attribute of this entity.
* @throws IllegalArgumentException if the attribute's target
* type is not a managed type
* @throws IllegalStateException if this EntityGraph has been
* statically defined
*/
public Subgraph addKeySubgraph(String attributeName, Class type);
/**
* Return the attribute nodes corresponding to the attributes of
* this managed type that are included in the subgraph.
* @return list of attribute nodes included in the subgraph or
* empty List if none have been defined
*/
public List> getAttributeNodes();
/**
* Return the type for which this subgraph was defined.
* @return managed type referenced by the subgraph
*/
public Class getClassType();
}