com.tangosol.coherence.dsltools.termtrees

Interface TermWalker

All Known Implementing Classes:

AbstractCoherenceQueryWalker, ConstructorQueryWalker, FilterBuilder, SelectListMaker, UpdateSetListMaker

public interface TermWalker

TermWalker is a visitor class that provides a framework for walking Term Trees

Author:

djl 2009.08.31

Method Summary

Modifier and Type	Method and Description
void	acceptAtom(String sFunctor, AtomicTerm atomicTerm) The receiver has been dispatched to from the given atom.
void	acceptNode(String sFunctor, NodeTerm term) The receiver has been dispatched to from the given node.
void	acceptTerm(String sFunctor, Term term) The receiver has been dispatched to from the given atom.
Object	getResult() Return the result of the previous TermTree walk.
Object	walk(Term term) Return the result of the walking the specified TermTree.

Method Detail

acceptNode

void acceptNode(String sFunctor,
                NodeTerm term)

The receiver has been dispatched to from the given node.

Parameters:

sFunctor - the node functor

term - the NodeTerm

acceptAtom

void acceptAtom(String sFunctor,
                AtomicTerm atomicTerm)

The receiver has been dispatched to from the given atom.

Parameters:

sFunctor - the node functor

atomicTerm - the AtomicTerm

acceptTerm

void acceptTerm(String sFunctor,
                Term term)

The receiver has been dispatched to from the given atom.

Parameters:

sFunctor - the node functor

term - the Term

getResult

Object getResult()

Return the result of the previous TermTree walk. This value could be null if no trees have been walked or the last tree walk resulted in an undetermined state.

Returns:

the result of the previous TermTree walk

walk

Object walk(Term term)

Return the result of the walking the specified TermTree. This value could be null if the tree walk results in an undetermined state.

Parameters:

term - the term tree to walk to obtain a result object

Returns:

the result of walking the specified TermTree