javax.sql.rowset.serial

Class SerialStruct

  • All Implemented Interfaces:
    Serializable, Cloneable, Struct 

    public class SerialStruct
extends Object
implements Struct, Serializable, Cloneable
    A serialized mapping in the Java programming language of an SQL structured type. Each attribute that is not already serialized is mapped to a serialized form, and if an attribute is itself a structured type, each of its attributes that is not already serialized is mapped to a serialized form.

    In addition, the structured type is custom mapped to a class in the Java programming language if there is such a mapping, as are its attributes, if appropriate.

    The SerialStruct class provides a constructor for creating an instance from a Struct object, a method for retrieving the SQL type name of the SQL structured type in the database, and methods for retrieving its attribute values.

    Thread safety

    A SerialStruct is not safe for use by multiple concurrent threads. If a SerialStruct is to be used by more than one thread then access to the SerialStruct should be controlled by appropriate synchronization.
    See Also:
    Serialized Form

    • Constructor Summary

      Constructors

      Constructor and Description
      SerialStruct(SQLData in, Map<String,Class<?>> map)
      Constructs a SerialStruct object from the given SQLData object, using the given type map to custom map it to a class in the Java programming language.
      SerialStruct(Struct in, Map<String,Class<?>> map)
      Constructs a SerialStruct object from the given Struct object, using the given java.util.Map object for custom mapping the SQL structured type or any of its attributes that are SQL structured types.

    • Method Summary

      Modifier and Type Method and Description
      Object clone()
      Returns a clone of this SerialStruct.
      boolean equals(Object obj)
      Compares this SerialStruct to the specified object.
      Object[] getAttributes()
      Retrieves an array of Object values containing the attributes of the SQL structured type that this SerialStruct object represents.
      Object[] getAttributes(Map<String,Class<?>> map)
      Retrieves the attributes for the SQL structured type that this SerialStruct represents as an array of Object values, using the given type map for custom mapping if appropriate.
      String getSQLTypeName()
      Retrieves the SQL type name for this SerialStruct object.
      int hashCode()
      Returns a hash code for this SerialStruct.

    • Constructor Detail

      • SerialStruct

        public SerialStruct(Struct in,
                    Map<String,Class<?>> map)
             throws SerialException
        Constructs a SerialStruct object from the given Struct object, using the given java.util.Map object for custom mapping the SQL structured type or any of its attributes that are SQL structured types.
        Parameters:
        in - an instance of Struct
        map - a java.util.Map object in which each entry consists of 1) a String object giving the fully qualified name of a UDT and 2) the Class object for the SQLData implementation that defines how the UDT is to be mapped
        Throws:
        SerialException - if an error occurs
        See Also:
        Struct

      • SerialStruct

        public SerialStruct(SQLData in,
                    Map<String,Class<?>> map)
             throws SerialException
        Constructs a SerialStruct object from the given SQLData object, using the given type map to custom map it to a class in the Java programming language. The type map gives the SQL type and the class to which it is mapped. The SQLData object defines the class to which the SQL type will be mapped.
        Parameters:
        in - an instance of the SQLData class that defines the mapping of the SQL structured type to one or more objects in the Java programming language
        map - a java.util.Map object in which each entry consists of 1) a String object giving the fully qualified name of a UDT and 2) the Class object for the SQLData implementation that defines how the UDT is to be mapped
        Throws:
        SerialException - if an error occurs

    • Method Detail

      • getSQLTypeName

        public String getSQLTypeName()
                      throws SerialException
        Retrieves the SQL type name for this SerialStruct object. This is the name used in the SQL definition of the structured type
        Specified by:
        getSQLTypeName in interface  Struct
        Returns:
        a String object representing the SQL type name for the SQL structured type that this SerialStruct object represents
        Throws:
        SerialException - if an error occurs

      • getAttributes

        public Object[] getAttributes()
                       throws SerialException
        Retrieves an array of Object values containing the attributes of the SQL structured type that this SerialStruct object represents.
        Specified by:
        getAttributes in interface  Struct
        Returns:
        an array of Object values, with each element being an attribute of the SQL structured type that this SerialStruct object represents
        Throws:
        SerialException - if an error occurs

      • getAttributes

        public Object[] getAttributes(Map<String,Class<?>> map)
                       throws SerialException
        Retrieves the attributes for the SQL structured type that this SerialStruct represents as an array of Object values, using the given type map for custom mapping if appropriate.
        Specified by:
        getAttributes in interface  Struct
        Parameters:
        map - a java.util.Map object in which each entry consists of 1) a String object giving the fully qualified name of a UDT and 2) the Class object for the SQLData implementation that defines how the UDT is to be mapped
        Returns:
        an array of Object values, with each element being an attribute of the SQL structured type that this SerialStruct object represents
        Throws:
        SerialException - if an error occurs

      • equals

        public boolean equals(Object obj)
        Compares this SerialStruct to the specified object. The result is true if and only if the argument is not null and is a SerialStruct object whose attributes are identical to this object's attributes
        Overrides:
        equals in class  Object
        Parameters:
        obj - The object to compare this SerialStruct against
        Returns:
        true if the given object represents a SerialStruct equivalent to this SerialStruct, false otherwise
        See Also:
        Object.hashCode(), HashMap

      • clone

        public Object clone()
        Returns a clone of this SerialStruct. The copy will contain a reference to a clone of the underlying attribs array, not a reference to the original underlying attribs array of this SerialStruct object.
        Overrides:
        clone in class  Object
        Returns:
        a clone of this SerialStruct
        See Also:
        Cloneable