org.pfsw.db.util

Interface MultiCategoryIdentifierGenerator

All Known Implementing Classes:

DefaultMultiCategoryIdentifierGenerator

public interface MultiCategoryIdentifierGenerator

An ID generator that supports different ID sequences for different categories.

Method Summary

Modifier and Type	Method and Description
java.lang.String	newIdentifier(java.lang.String category) Returns a new identifier for the given category.
long	nextIdentifier(java.lang.String category) Returns a new identifier which is different to the last one for the given category.

Method Detail

newIdentifier

java.lang.String newIdentifier(java.lang.String category)

Returns a new identifier for the given category.

Parameters:

category - An arbitrary but unique name for the ID sequence (must not be null).

Throws:

IdentifierGenerationException - if the category cannot be found of ID generation fails for any reason.

nextIdentifier

long nextIdentifier(java.lang.String category)

Returns a new identifier which is different to the last one for the given category.

Parameters:

category - An arbitrary but unique name for the ID sequence (must not be null).

Returns:

The next ID value.

Throws:

IdentifierGenerationException - if the category cannot be found of ID generation fails for any reason.