com.hp.hpl.jena.graph.query
Interface PatternCompiler

All Known Implementing Classes:

PatternStageCompiler

public interface PatternCompiler

A PatternCompiler is some class that knows how to handle fixed Node values, binding and bound occurences of variables, and wildcards.

Author:

kers

Method Summary

Element	any() Method called to deliver a compiled element from a wildcard ANY.
Element	bind(Node n, int index) Method called to deliver a compiled element from a binding occurance of a variable Node allocated at a given index position.
Element	bound(Node n, int index) Method called to deliver a compiled element from a bound occurance of a variable Node allocated at a given index position.
Element	fixed(Node value) Method called to deliver a compiled Element constructed from a constant Node.

Method Detail

fixed

Element fixed(Node value)

Method called to deliver a compiled Element constructed from a constant Node.

bound

Element bound(Node n,
              int index)

Method called to deliver a compiled element from a bound occurance of a variable Node allocated at a given index position.

bind

Element bind(Node n,
             int index)

Method called to deliver a compiled element from a binding occurance of a variable Node allocated at a given index position.

any

Element any()

Method called to deliver a compiled element from a wildcard ANY.