org.postgresql.pljava.internal
Class Oid

java.lang.Object
  java.lang.Number
      org.postgresql.pljava.internal.Oid

All Implemented Interfaces:

Serializable

public class Oid
extends Number

The Oid correspons to the internal PostgreSQL Oid. Should the size of that change from 32 bit, this class must change too. In Java, the InvalidOid is represented as null.

Author:

Thomas Hallgren

See Also:

Serialized Form

Constructor Summary

Oid(int value)

Method Summary

double	doubleValue()
boolean	equals(Object o) Checks to see if the other object is an Oid, and if so, if the native value of that Oid equals the native value of this Oid.
float	floatValue()
static Oid	forJavaClass(Class clazz) Finds the PostgreSQL well known Oid for the given class.
static Oid	forSqlType(int sqlType) Finds the PostgreSQL well known Oid for the XOPEN Sql type.
static Oid	forTypeName(String typeString) Finds the PostgreSQL well known Oid for a type name.
Class	getJavaClass()
static Oid	getTypeId() Returns the PostgreSQL type id for the Oid type.
int	hashCode() The native value is used as the hash code.
int	intValue()
long	longValue()
static void	registerType(Class clazz, Oid typeId) A Type well known to PostgreSQL but not known as a standard XOPEN SQL type can be registered here.
String	toString() Returns a string representation of this OID.

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Oid

public Oid(int value)

Method Detail

forJavaClass

public static Oid forJavaClass(Class clazz)

Finds the PostgreSQL well known Oid for the given class.

Parameters:

clazz - The class.

Returns:

The well known Oid or null if no such Oid could be found.

forTypeName

public static Oid forTypeName(String typeString)

Finds the PostgreSQL well known Oid for a type name.

Parameters:

typeString - The name of the type, optionally qualified with a namespace.

Returns:

The well known Oid.

Throws:

SQLException - if the type could not be found

forSqlType

public static Oid forSqlType(int sqlType)

Finds the PostgreSQL well known Oid for the XOPEN Sql type.

Parameters:

sqlType - The XOPEN type code.

Throws:

SQLException - if the type could not be found

getTypeId

public static Oid getTypeId()

Returns the PostgreSQL type id for the Oid type.

registerType

public static void registerType(Class clazz,
                                Oid typeId)

A Type well known to PostgreSQL but not known as a standard XOPEN SQL type can be registered here. This includes types like the Oid itself and all the geometry related types.

Parameters:

clazz - The Java class that corresponds to the type id.

typeId - The well known type id.

doubleValue

public double doubleValue()

Specified by:

doubleValue in class Number

equals

public boolean equals(Object o)

Checks to see if the other object is an Oid, and if so, if the native value of that Oid equals the native value of this Oid.

Overrides:

equals in class Object

Returns:

true if the objects are equal.

floatValue

public float floatValue()

Specified by:

floatValue in class Number

getJavaClass

public Class getJavaClass()
                   throws SQLException

Throws:

SQLException

hashCode

public int hashCode()

The native value is used as the hash code.

Overrides:

hashCode in class Object

Returns:

The hashCode for this Oid.

intValue

public int intValue()

Specified by:

intValue in class Number

longValue

public long longValue()

Specified by:

longValue in class Number

toString

public String toString()

Returns a string representation of this OID.

Overrides:

toString in class Object