javax.persistence

Interface Subgraph<T>

Contents
  • 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 Detail

      • addAttributeNodes

        void addAttributeNodes(String... attributeName)
        Add one or more attribute nodes to the entity graph.
        Parameters:
        attributeName - name of the attribute
        Throws:
        IllegalArgumentException - if the attribute is not an attribute of this managed type.
        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:
        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:
        IllegalArgumentException - if the attribute's target type is not a managed type
        IllegalStateException - if the EntityGraph has been statically defined

      • addSubgraph

        <X> Subgraph<? extends X> addSubgraph(Attribute<T,X> attribute,
                                      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:
        IllegalArgumentException - if the attribute's target type is not a managed type
        IllegalStateException - if this EntityGraph has been statically defined

      • addSubgraph

        <X> Subgraph<X> addSubgraph(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:
        IllegalArgumentException - if the attribute is not an attribute of this managed type.
        IllegalArgumentException - if the attribute's target type is not a managed type
        IllegalStateException - if this EntityGraph has been statically defined

      • addSubgraph

        <X> Subgraph<X> addSubgraph(String attributeName,
                            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:
        IllegalArgumentException - if the attribute is not an attribute of this managed type.
        IllegalArgumentException - if the attribute's target type is not a managed type
        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:
        IllegalArgumentException - if the attribute's target type is not a managed type entity
        IllegalStateException - if this EntityGraph has been statically defined

      • addKeySubgraph

        <X> Subgraph<? extends X> addKeySubgraph(Attribute<T,X> attribute,
                                         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:
        IllegalArgumentException - if the attribute's target type is not a managed type entity
        IllegalStateException - if this EntityGraph has been statically defined

      • addKeySubgraph

        <X> Subgraph<X> addKeySubgraph(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:
        IllegalArgumentException - if the attribute is not an attribute of this entity.
        IllegalArgumentException - if the attribute's target type is not a managed type
        IllegalStateException - if this EntityGraph has been statically defined

      • addKeySubgraph

        <X> Subgraph<X> addKeySubgraph(String attributeName,
                               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:
        IllegalArgumentException - if the attribute is not an attribute of this entity.
        IllegalArgumentException - if the attribute's target type is not a managed type
        IllegalStateException - if this EntityGraph has been statically defined

      • getAttributeNodes

        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

        Class<T> getClassType()
        Return the type for which this subgraph was defined.
        Returns:
        managed type referenced by the subgraph

Document created the 11/06/2005, last modified the 18/08/2025
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References

  1. View the html document Language of the document:fr Manuel PHP : https://docs.oracle.com, Subgraph (Java(TM) EE 7 Specification APIs)

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