Package org.eigenbase.util.mapping

Provides utility classes.

See:
Description

Interface Summary

Mapping	A Mapping is a relationship between a source domain to target domain of integers.
Mappings.FunctionMapping	Mapping where every source has a target.
Mappings.SourceMapping	Mapping suitable for sourcing columns.
Mappings.TargetMapping	Mapping suitable for mapping columns to a target.

Class Summary

IntPair	An immutable pair of integers.
Mappings	Utility functions related to mappings.
Mappings.AbstractMapping
Mappings.FiniteAbstractMapping
Mappings.FunctionMappingIter
Mappings.IdentityMapping
Mappings.InverseMapping	Decorator which converts any Mapping into the inverse of itself.
Mappings.OverridingSourceMapping
Mappings.OverridingTargetMapping
Mappings.PartialFunctionImpl	Implementation of Mapping where a source can have at most one target, and a target can have any number of sources.
Mappings.PartialMapping	A mapping where a source at most one target, and every target has at most one source.
Mappings.SurjectionWithInverse	A surjection with inverse has precisely one source for each target.

Enum Summary

MappingType

Describes the type of a mapping, from the most general MappingType.MultiFunction (every element in the source and target domain can participate in many mappings) to the most retricted MappingType.Bijection (every element in the source and target domain must be paired with precisely one element in the other domain).

Exception Summary

Mappings.NoElementException	Thrown when a mapping is expected to return one element but returns none.
Mappings.TooManyElementsException	Thrown when a mapping is expected to return one element but returns several.

Package org.eigenbase.util.mapping Description

Provides utility classes.

Revision	$Id: //open/dev/farrago/src/org/eigenbase/util/mapping/package.html#4 $
Copyright	Copyright (C) 2005-2009 The Eigenbase Project Copyright (C) 2004-2009 SQLstream, Inc. Copyright (C) 2005-2009 LucidEra, Inc.
Author	Julian Hyde