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public interface UUID
An interface for accessing Derby 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 | |
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static int |
UUID_BYTE_LENGTH
UUID_BYTE_LENGTH The number of bytes in the array toByteArray returns. |
Method Summary | |
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UUID |
cloneMe()
Clone this UUID. |
java.lang.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. |
java.lang.String |
toHexString()
Create a hex string representation of this UUID. |
Methods inherited from interface java.io.Externalizable |
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readExternal, writeExternal |
Field Detail |
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static final int UUID_BYTE_LENGTH
Method Detail |
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java.lang.String toANSIidentifier()
byte[] toByteArray()
UUID cloneMe()
java.lang.String toHexString()
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