dk.rode.thesis.visitor
Interface SequenceTypeScanner

All Known Implementing Classes:

SimpleScanner

@Participant(value="ObjectStructure")
public interface SequenceTypeScanner

A sequence type scanner performs the actual traversal of the sequence structure to be visited by a type visitor, invoking the TypeVisitableSequence.accept(SequenceTypeVisitor, Object) visitation method on each found type visitable sequence.

Non-visitable sequences are ignored, but ordinary composite sequences are still traversed.

Author:

Gunni Rode / rode.dk

See Also:

SequenceTypeVisitor, SequenceValueScanner

Method Summary

<P> void

scan(TypeVisitableSequence<?> sequence, SequenceTypeVisitor<P> visitor, P argument) Performs the traversal of the sequence structure starting with sequence using the type visitor supplied as visitor.

Method Detail

scan

<P> void scan(TypeVisitableSequence<?> sequence,
              SequenceTypeVisitor<P> visitor,
              P argument)

Performs the traversal of the sequence structure starting with sequence using the type visitor supplied as visitor. If sequence is non-composite, it will be the only sequence visited.

For each type visitable sequence found in the sequence structure, the TypeVisitableSequence.accept(SequenceTypeVisitor, Object) visitation method is invoked.

Type Parameters:

P - The type of the additional parameter to required by visitor. Use Void for visitors that do not need an additional parameter.

Parameters:

sequence - The starting sequence ("root"); cannot be null.

visitor - The type visitor to use; cannot be null.

argument - A visitor specified argument, if any; nullability determined by visitor.

Throws:

NullPointerException - If sequence or visitor are null.