Class LiteralPathElement
- java.lang.Object
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- com.bazaarvoice.jolt.common.pathelement.BasePathElement
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- com.bazaarvoice.jolt.common.pathelement.LiteralPathElement
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- All Implemented Interfaces:
EvaluatablePathElement
,MatchablePathElement
,PathElement
public class LiteralPathElement extends BasePathElement implements MatchablePathElement, EvaluatablePathElement
Meant to be an immutable PathElement from a Spec, and therefore shareable across threads running multiple transforms using the same spec.
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Field Summary
Fields Modifier and Type Field Description private java.lang.String
canonicalForm
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Constructor Summary
Constructors Constructor Description LiteralPathElement(java.lang.String key)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.String
evaluate(WalkedPath walkedPath)
Evaluate this key as if it is an write path element.java.lang.String
getCanonicalForm()
Get the canonical form of this PathElement.MatchedElement
match(java.lang.String dataKey, WalkedPath walkedPath)
See if this PathElement matches the given dataKey.-
Methods inherited from class com.bazaarvoice.jolt.common.pathelement.BasePathElement
getRawKey, toString
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface com.bazaarvoice.jolt.common.pathelement.PathElement
getRawKey
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Method Detail
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evaluate
public java.lang.String evaluate(WalkedPath walkedPath)
Description copied from interface:EvaluatablePathElement
Evaluate this key as if it is an write path element.- Specified by:
evaluate
in interfaceEvaluatablePathElement
- 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
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match
public MatchedElement match(java.lang.String dataKey, WalkedPath walkedPath)
Description copied from interface:MatchablePathElement
See if this PathElement matches the given dataKey. If it does not match, this method returns null. If this PathElement does match, it returns a LiteralPathElement with subKeys filled in.- Specified by:
match
in interfaceMatchablePathElement
- Parameters:
dataKey
- String key value from the input datawalkedPath
- "up the tree" list of LiteralPathElements, that may be used by this key as it is computing its match- Returns:
- null or a matched LiteralPathElement
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getCanonicalForm
public java.lang.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 interfacePathElement
- Returns:
- canonical String version of this PathElement
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