Package org.apache.commons.functor.core

package org.apache.commons.functor.core

Commonly used functor implementations.

Related Packages

Package	Description
org.apache.commons.functor	Basic functor interfaces.
org.apache.commons.functor.core.algorithm	Various algorithm-esque functors.
org.apache.commons.functor.core.collection	Collection-based functors, algorithms and utilities.
org.apache.commons.functor.core.comparator	Comparator- and Comparable-based functors, algorithms and utilities.
org.apache.commons.functor.core.composite	Functors composed of other functors.
org.apache.commons.functor.adapter	Classes that adapt one functor interface to another.
org.apache.commons.functor.generator	Contains code related to Generators.

Classes

Class	Description
Constant<T>	Evaluates to constant value.
Identity<T>	Evaluates to its input argument.
IsEqual<L,R>	Tests true iff its arguments are equal or both null.
IsInstance<T>	Tests true iff its argument is an instance of some specified Class.
IsNotEqual<L,R>	Tests true iff its arguments are not equal or both null.
IsNotNull<T>	Tests false iff its argument is null.
IsNotSame<L,R>	Tests the reference (!=) inequality of its arguments.
IsNull<A>	Tests true iff its argument is null.
IsSame<L,R>	Tests the reference (==) equality of its arguments.
LeftIdentity	Holder class for a left-identity BinaryFunction (evaluates to the left argument) and a left-identity BinaryPredicate (tests whether left Boolean argument equals Boolean.TRUE).
Limit	A predicate that returns true the first n times it is invoked.
NoOp	A procedure that does nothing at all.
Offset	A predicate that returns false the first n times it is invoked, and true thereafter.
RightIdentity	Holder class for a right-identity BinaryFunction (evaluates to the right argument) and a right-identity BinaryPredicate (tests whether right Boolean argument equals Boolean.TRUE).