com.goldencode.p2j.util

Class UniqueIdGenerator

java.lang.Object

com.goldencode.p2j.util.UniqueIdGenerator

public class UniqueIdGenerator
extends java.lang.Object

Generator for ids used as UNIQUE-ID attribute values. Generates values that unique across specific kind of entities (temp-tables, buffers, buffer fields etc.) in a specific user context. Note that behavior of this generation may not always match 4GL behavior.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	UniqueIdGenerator.IdKind Kind of entities (generates values are unique only across specific kind of entities).

Field Summary

Fields

Modifier and Type	Field and Description
private static ContextLocal<java.util.Map<UniqueIdGenerator.IdKind,integer>>	context Context-local map of kinds of entities to the next available unique id for this kind.

Constructor Summary

Constructors

Constructor and Description
UniqueIdGenerator()

Method Summary

Modifier and Type	Method and Description
static long	getUniqueId(UniqueIdGenerator.IdKind kind) Get new unique id for the specified kind of entities (see UniqueIdGenerator.IdKind) in the current user context.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

context

private static final ContextLocal<java.util.Map<UniqueIdGenerator.IdKind,integer>> context

Context-local map of kinds of entities to the next available unique id for this kind.

Constructor Detail

UniqueIdGenerator

public UniqueIdGenerator()

Method Detail

getUniqueId

public static long getUniqueId(UniqueIdGenerator.IdKind kind)

Get new unique id for the specified kind of entities (see UniqueIdGenerator.IdKind) in the current user context.

Parameters:

kind - Kind of entities for which the id is generated.

Returns:

See above.