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Java Source Code / Java Documentation » Database DBMS » db derby 10.2 » org.apache.derby.catalog

Source Cross Reference

Class Diagram

Java Document (Java Doc)

org.apache.derby.catalog .UUID

All known Subclasses:   org.apache.derby.impl.services.uuid .BasicUUID,
UUID
public interface UUID extends java.io.Externalizable(Code)
An interface for accessing Cloudscape UUIDs, unique identifiers.
The values in the system catalog held in ID columns with a type of CHAR(36) are the string representations of these UUIDs.
A UUID implements equals() and hashCode based on value equality.

Field Summary
static int UUID_BYTE_LENGTH
     UUID_BYTE_LENGTH The number of bytes in the array toByteArray returns.

Method Summary
UUID cloneMe()
     Clone this UUID.
String toANSIidentifier()
     Produce a string representation of this UUID which is suitable for use as a unique ANSI identifier.
byte[] toByteArray()
     Produce a byte array representation of this UUID which can be passed to UUIDFactory.recreateUUID later on to reconstruct it.
String toHexString()
     Create a hex string representation of this UUID.

Field Detail
UUID_BYTE_LENGTH
static int UUID_BYTE_LENGTH(Code)
UUID_BYTE_LENGTH The number of bytes in the array toByteArray returns.

Method Detail
cloneMe
UUID cloneMe()(Code)
Clone this UUID. a copy of this UUID

toANSIidentifier
String toANSIidentifier()(Code)
Produce a string representation of this UUID which is suitable for use as a unique ANSI identifier.

toByteArray
byte[] toByteArray()(Code)
Produce a byte array representation of this UUID which can be passed to UUIDFactory.recreateUUID later on to reconstruct it.

toHexString
String toHexString()(Code)
Create a hex string representation of this UUID.

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