Subgraph

Type Parameters:

T - The type of the attribute.
```
public interface Subgraph<T>
```
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.

Since:

Java Persistence 2.1

See Also:

EntityGraph, AttributeNode, NamedSubgraph

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`addAttributeNodes(Attribute<T,?>... attribute)` Add one or more attribute nodes to the entity graph.
`void`	`addAttributeNodes(java.lang.String... attributeName)` Add one or more attribute nodes to the entity graph.
`<X> Subgraph<X>`	`addKeySubgraph(Attribute<T,X> attribute)` Add a node to the graph that corresponds to a map key that is a managed type.
`<X> Subgraph<? extends X>`	`addKeySubgraph(Attribute<T,X> attribute, java.lang.Class<? extends X> type)` Add a node to the graph that corresponds to a map key that is a managed type with inheritance.
`<X> Subgraph<X>`	`addKeySubgraph(java.lang.String attributeName)` Add a node to the graph that corresponds to a map key that is a managed type.
`<X> Subgraph<X>`	`addKeySubgraph(java.lang.String attributeName, java.lang.Class<X> type)` Add a node to the graph that corresponds to a map key that is a managed type with inheritance.
`<X> Subgraph<X>`	`addSubgraph(Attribute<T,X> attribute)` Add a node to the graph that corresponds to a managed type.
`<X> Subgraph<? extends X>`	`addSubgraph(Attribute<T,X> attribute, java.lang.Class<? extends X> type)` Add a node to the graph that corresponds to a managed type with inheritance.
`<X> Subgraph<X>`	`addSubgraph(java.lang.String attributeName)` Add a node to the graph that corresponds to a managed type.
`<X> Subgraph<X>`	`addSubgraph(java.lang.String attributeName, java.lang.Class<X> type)` Add a node to the graph that corresponds to a managed type with inheritance.
`java.util.List<AttributeNode<?>>`	`getAttributeNodes()` Return the attribute nodes corresponding to the attributes of this managed type that are included in the subgraph.
`java.lang.Class<T>`	`getClassType()` Return the type for which this subgraph was defined.

- Method Detail
  - addAttributeNodes
```
void addAttributeNodes(java.lang.String... attributeName)
```
    Add one or more attribute nodes to the entity graph.
    
    Parameters:
    
    attributeName - name of the attribute
    
    Throws:
    
    java.lang.IllegalArgumentException - if the attribute is not an attribute of this managed type.
    
    java.lang.IllegalStateException - if the EntityGraph has been statically defined
  - addAttributeNodes
```
void addAttributeNodes(Attribute<T,?>... attribute)
```
    Add one or more attribute nodes to the entity graph.
    
    Parameters:
    
    attribute - attribute
    
    Throws:
    
    java.lang.IllegalStateException - if this EntityGraph has been statically defined
  - addSubgraph
```
<X> Subgraph<X> addSubgraph(Attribute<T,X> 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.
    
    Parameters:
    
    attribute - attribute
    
    Returns:
    
    subgraph for the attribute
    
    Throws:
    
    java.lang.IllegalArgumentException - if the attribute's target type is not a managed type
    
    java.lang.IllegalStateException - if the EntityGraph has been statically defined
  - addSubgraph
```
<X> Subgraph<? extends X> addSubgraph(Attribute<T,X> attribute,
                                      java.lang.Class<? extends X> type)
```
    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
    
    Parameters:
    
    attribute - attribute
    
    type - entity subclass
    
    Returns:
    
    subgraph for the attribute
    
    Throws:
    
    java.lang.IllegalArgumentException - if the attribute's target type is not a managed type
    
    java.lang.IllegalStateException - if this EntityGraph has been statically defined
  - addSubgraph
```
<X> Subgraph<X> addSubgraph(java.lang.String attributeName)
```
    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.
    
    Parameters:
    
    attributeName - name of the attribute
    
    Returns:
    
    subgraph for the attribute
    
    Throws:
    
    java.lang.IllegalArgumentException - if the attribute is not an attribute of this managed type.
    
    java.lang.IllegalArgumentException - if the attribute's target type is not a managed type
    
    java.lang.IllegalStateException - if this EntityGraph has been statically defined
  - addSubgraph
```
<X> Subgraph<X> addSubgraph(java.lang.String attributeName,
                            java.lang.Class<X> type)
```
    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
    
    Parameters:
    
    attributeName - name of the attribute
    
    type - entity subclass
    
    Returns:
    
    subgraph for the attribute
    
    Throws:
    
    java.lang.IllegalArgumentException - if the attribute is not an attribute of this managed type.
    
    java.lang.IllegalArgumentException - if the attribute's target type is not a managed type
    
    java.lang.IllegalStateException - if this EntityGraph has been statically defined
  - addKeySubgraph
```
<X> Subgraph<X> addKeySubgraph(Attribute<T,X> attribute)
```
    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.
    
    Parameters:
    
    attribute - attribute
    
    Returns:
    
    subgraph for the key attribute
    
    Throws:
    
    java.lang.IllegalArgumentException - if the attribute's target type is not a managed type entity
    
    java.lang.IllegalStateException - if this EntityGraph has been statically defined
  - addKeySubgraph
```
<X> Subgraph<? extends X> addKeySubgraph(Attribute<T,X> attribute,
                                         java.lang.Class<? extends X> type)
```
    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
    
    Parameters:
    
    attribute - attribute
    
    type - entity subclass
    
    Returns:
    
    subgraph for the attribute
    
    Throws:
    
    java.lang.IllegalArgumentException - if the attribute's target type is not a managed type entity
    
    java.lang.IllegalStateException - if this EntityGraph has been statically defined
  - addKeySubgraph
```
<X> Subgraph<X> addKeySubgraph(java.lang.String attributeName)
```
    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.
    
    Parameters:
    
    attributeName - name of the attribute
    
    Returns:
    
    subgraph for the key attribute
    
    Throws:
    
    java.lang.IllegalArgumentException - if the attribute is not an attribute of this entity.
    
    java.lang.IllegalArgumentException - if the attribute's target type is not a managed type
    
    java.lang.IllegalStateException - if this EntityGraph has been statically defined
  - addKeySubgraph
```
<X> Subgraph<X> addKeySubgraph(java.lang.String attributeName,
                               java.lang.Class<X> type)
```
    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
    
    Parameters:
    
    attributeName - name of the attribute
    
    type - entity subclass
    
    Returns:
    
    subgraph for the attribute
    
    Throws:
    
    java.lang.IllegalArgumentException - if the attribute is not an attribute of this entity.
    
    java.lang.IllegalArgumentException - if the attribute's target type is not a managed type
    
    java.lang.IllegalStateException - if this EntityGraph has been statically defined
  - getAttributeNodes
```
java.util.List<AttributeNode<?>> getAttributeNodes()
```
    Return the attribute nodes corresponding to the attributes of this managed type that are included in the subgraph.
    
    Returns:
    
    list of attribute nodes included in the subgraph or empty List if none have been defined
  - getClassType
```
java.lang.Class<T> getClassType()
```
    Return the type for which this subgraph was defined.
    
    Returns:
    
    managed type referenced by the subgraph

Interface Subgraph<T>

Method Summary

Method Detail

addAttributeNodes

addAttributeNodes

addSubgraph

addSubgraph

addSubgraph

addSubgraph

addKeySubgraph

addKeySubgraph

addKeySubgraph

addKeySubgraph

getAttributeNodes

getClassType