org.apache.tinkerpop.gremlin.process.traversal.translator

Class GroovyTranslator.LanguageTypeTranslator

java.lang.Object

org.apache.tinkerpop.gremlin.process.traversal.Translator.ScriptTranslator.AbstractTypeTranslator

org.apache.tinkerpop.gremlin.process.traversal.translator.GroovyTranslator.DefaultTypeTranslator

org.apache.tinkerpop.gremlin.process.traversal.translator.GroovyTranslator.LanguageTypeTranslator

All Implemented Interfaces:

BiFunction<String,Object,Script>, Translator.ScriptTranslator.TypeTranslator

Enclosing class:

GroovyTranslator

public static class GroovyTranslator.LanguageTypeTranslator
extends GroovyTranslator.DefaultTypeTranslator

An extension of the GroovyTranslator.DefaultTypeTranslator that generates Gremlin that is compliant with gremlin-language scripts. Specifically, it will convert Date and Timestamp to use the datetime() function. Time zone offsets are resolved to where 2018-03-22T00:35:44.741+1600 would be converted to datetime('2018-03-21T08:35:44.741Z'). More commonly 2018-03-22 would simply generate datetime('2018-03-22T00:00:00Z').

In addition, it prefers use of Vertex when producing a ReferenceVertex.

Field Summary

Fields inherited from class org.apache.tinkerpop.gremlin.process.traversal.Translator.ScriptTranslator.AbstractTypeTranslator

ANONYMOUS_TRAVERSAL_PREFIX, script, withParameters

Constructor Summary

Constructors

Constructor and Description
LanguageTypeTranslator(boolean withParameters)

Method Summary

Modifier and Type	Method and Description
protected String	getSyntax(Date o) Take the Date argument and convert it to a string representation in the target language.
protected String	getSyntax(Number o) Take the numeric argument and convert it to a string representation in the target language.
protected String	getSyntax(Timestamp o) Take the Timestamp argument and convert it to a string representation in the target language.
protected Script	produceScript(Vertex o) Take the Vertex and writes the syntax directly to the member Translator.ScriptTranslator.AbstractTypeTranslator.script variable.

Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.translator.GroovyTranslator.DefaultTypeTranslator

getNullSyntax, getSyntax, getSyntax, getSyntax, getSyntax, getSyntax, getSyntax, getSyntax, produceScript, produceScript, produceScript, produceScript, produceScript, produceScript, produceScript, produceScript, produceScript, produceScript

Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.Translator.ScriptTranslator.AbstractTypeTranslator

apply, convertToScript, getAnonymousTraversalPrefix

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.BiFunction

andThen

Constructor Detail

LanguageTypeTranslator

public LanguageTypeTranslator(boolean withParameters)

Method Detail

getSyntax

protected String getSyntax(Date o)

Description copied from class: Translator.ScriptTranslator.AbstractTypeTranslator

Take the Date argument and convert it to a string representation in the target language.

Overrides:

getSyntax in class GroovyTranslator.DefaultTypeTranslator

getSyntax

protected String getSyntax(Timestamp o)

Description copied from class: Translator.ScriptTranslator.AbstractTypeTranslator

Take the Timestamp argument and convert it to a string representation in the target language.

Overrides:

getSyntax in class GroovyTranslator.DefaultTypeTranslator

produceScript

protected Script produceScript(Vertex o)

Description copied from class: Translator.ScriptTranslator.AbstractTypeTranslator

Take the Vertex and writes the syntax directly to the member Translator.ScriptTranslator.AbstractTypeTranslator.script variable.

Overrides:

produceScript in class GroovyTranslator.DefaultTypeTranslator

getSyntax

protected String getSyntax(Number o)

Description copied from class: Translator.ScriptTranslator.AbstractTypeTranslator

Take the numeric argument and convert it to a string representation in the target language. Languages that can discern differences in types of numbers will wish to further check the type of the Number instance itself (i.e. Double, Integer, etc.)

Overrides:

getSyntax in class GroovyTranslator.DefaultTypeTranslator