com.hammurapi.extract

Interface CompositePredicate<T,PC extends Collection<Predicate<T,C>>,C,S extends CompositePredicate<T,PC,C,S>>

Type Parameters:

T -

PC - Parts collection type.

C - Context type.

All Superinterfaces:

Cloneable, Extractor<T,Boolean,C>, FacadeExtractor<T,Boolean,C>, Mappable<T,Boolean,C>, Predicate<T,C>

All Known Subinterfaces:

CommutativeCompositePredicate<T,C,S>

All Known Implementing Classes:

And, CommutativeAnd, CommutativeOr, Or

public interface CompositePredicate<T,PC extends Collection<Predicate<T,C>>,C,S extends CompositePredicate<T,PC,C,S>>
extends Predicate<T,C>, FacadeExtractor<T,Boolean,C>, Mappable<T,Boolean,C>, Cloneable

Predicate which is a composition of other predicates, e.g. AND or OR operations.

Method Summary

Methods

Modifier and Type	Method and Description
S	add(Predicate<T,C> part)
PC	getParts()
Predicate<T,C>	normalize() Normalizes predicate by removing less restrictive parts in AND or more restrictive parts in OR, and analyzing if predicate is always TRUE or always FALSE.
Predicate<T,C>	remove(Predicate<T,C> part)

Methods inherited from interface com.hammurapi.extract.Extractor

compareTo, extract, getCost, isContextDependent, parameterIndices

Methods inherited from interface com.hammurapi.extract.Mappable

map

Method Detail

getParts

PC getParts()

Returns:

Sub-predicates.

remove

Predicate<T,C> remove(Predicate<T,C> part)

Parameters:

part -

Returns:

Returns composite predicate of the same type without given part. If there is one remaining part then this part is returned.

normalize

Predicate<T,C> normalize()

Normalizes predicate by removing less restrictive parts in AND or more restrictive parts in OR, and analyzing if predicate is always TRUE or always FALSE.

Returns:

Normalized predicate, True if predicate always evaluates to true, False if predicate always evaluates to false.

add

S add(Predicate<T,C> part)