Package com.bigdata.relation.rule

This package includes an abstraction layer for rules.

See:
Description

Interface Summary

IAccessPathExpander<E>	An interface for expander patterns for an IPredicate when it appears in the right-hand position of a JOIN.
IBinding	Interface for a binding.
IProgram	A program consists of a set of rules and/or programs.
IQueryOptions	A collection of constraints that may be imposed on an IStep when evaluated as a query.
IRule<E>	Conjunctive query of N IPredicates with optional IConstraints.
ISlice	Indicates the first solution to be returned to the caller (offset) and the #of solutions to be returned (limit).
IStarJoin<E>	Deprecated. This is not currently supported.
IStarJoin.IStarConstraint<E>	A star constraint specifies the shape of the star join.
IStep	An IStep is either a single IRule or a complex IProgram.

Class Summary

Binding	Implementation of a binding.
EmptyAccessPathExpander<E>	An "expander" which replaces the access path with an EmptyAccessPath.
Program	Mutable program may be used to create a variety of rule executions.
QueryOptions
Rule<E>	Default impl.
Slice	Default implementation.

Package com.bigdata.relation.rule Description

This package includes an abstraction layer for rules. The class of rules is conjunctive query. Negation is not supported, except within constraints. There is support for reading on fused views which can be useful for transaction processing and truth maintenance. The solutions for rules may be read back (query) or written onto a relation (insert or delete).