com.bazaarvoice.jolt.common.tree

Class MatchedElement

java.lang.Object

com.bazaarvoice.jolt.common.pathelement.BasePathElement

com.bazaarvoice.jolt.common.tree.MatchedElement

All Implemented Interfaces:

EvaluatablePathElement, PathElement

Direct Known Subclasses:

ArrayMatchedElement

public class MatchedElement
extends BasePathElement
implements EvaluatablePathElement

MatchedElement is the result of a "match" between a spec PathElement and some input data. MatchedElements are not thread safe, and should instead be stack / single Thread/Transform specific. This mutability was specifically added for the the HashCount functionality, which allows Shiftr to transform data form maps to lists.

Constructor Summary

Constructors

Constructor and Description
MatchedElement(String key)
MatchedElement(String key, List<String> subKeys)

Method Summary

Modifier and Type	Method and Description
String	evaluate(WalkedPath walkedPath) Evaluate this key as if it is an write path element.
String	getCanonicalForm() Get the canonical form of this PathElement.
int	getHashCount()
int	getSubKeyCount()
String	getSubKeyRef(int index)
void	incrementHashCount() Here be mutability...

Methods inherited from class com.bazaarvoice.jolt.common.pathelement.BasePathElement

getRawKey, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.bazaarvoice.jolt.common.pathelement.PathElement

getRawKey

Constructor Detail

MatchedElement

public MatchedElement(String key)

MatchedElement

public MatchedElement(String key,
                      List<String> subKeys)

Method Detail

evaluate

public String evaluate(WalkedPath walkedPath)

Description copied from interface: EvaluatablePathElement

Evaluate this key as if it is an write path element.

Specified by:

evaluate in interface EvaluatablePathElement

Parameters:

walkedPath - "up the tree" list of LiteralPathElements, that may be used by this key as it is computing

Returns:

String path element to use for write tree building

getCanonicalForm

public String getCanonicalForm()

Description copied from interface: PathElement

Get the canonical form of this PathElement. Really only interesting for the Reference Path element, where it will expand "&" to "&0(0)".

Specified by:

getCanonicalForm in interface PathElement

Returns:

canonical String version of this PathElement

getSubKeyRef

public String getSubKeyRef(int index)

getSubKeyCount

public int getSubKeyCount()

getHashCount

public int getHashCount()

incrementHashCount

public void incrementHashCount()

Here be mutability...