org.hawkular.inventory.paths

Class Path.Extender

java.lang.Object

org.hawkular.inventory.paths.Path.Extender

Direct Known Subclasses:

CanonicalPath.Extender, RelativePath.Extender

Enclosing class:

Path

public abstract static class Path.Extender
extends Object

While CanonicalPath.Builder or RelativePath.Builder provide compile-time-safe canonical path construction, this class provides the same behavior at runtime, throwing IllegalArgumentExceptions if the segments being added to a path are invalid in given context.

Method Summary

Modifier and Type	Method and Description
boolean	canExtendTo(Path.Segment segment) Checks whether this path can be extended with the provided segment.
Boolean	canExtendTo(SegmentType segmentType) Checks whether this path can be extended by a segment of the provided type.
Path.Extender	extend(Collection<Path.Segment> segments)
Path.Extender	extend(Path.Segment segment)
Path.Extender	extend(SegmentType type, String id)
Path	get()
protected abstract Path	newPath(int startIdx, int endIdx, List<Path.Segment> segments)
protected void	removeLastSegment()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

newPath

protected abstract Path newPath(int startIdx,
                                int endIdx,
                                List<Path.Segment> segments)

canExtendTo

public Boolean canExtendTo(SegmentType segmentType)

Checks whether this path can be extended by a segment of the provided type.

Parameters:

segmentType - the type of the next segment

Returns:

true if the path can be definitely extended by a segment of the provided type, false if definitely not or null if the the extension will only succeed with a correct id (which can happen when this extender is set up with some origin path and has not been extended past it).

canExtendTo

public boolean canExtendTo(Path.Segment segment)

Checks whether this path can be extended with the provided segment.

Parameters:

segment - the segment to extend the path with

Returns:

true if the path can be extended with the provided segment, false otherwise.

extend

public Path.Extender extend(Path.Segment segment)

removeLastSegment

protected void removeLastSegment()

extend

public Path.Extender extend(Collection<Path.Segment> segments)

extend

public Path.Extender extend(SegmentType type,
                            String id)

get

public Path get()