org.janusgraph.core.attribute

Class TinkerPopTextWrappingPredicate

java.lang.Object

org.janusgraph.core.attribute.TinkerPopTextWrappingPredicate

All Implemented Interfaces:

BiPredicate<Object,Object>, JanusGraphPredicate

public class TinkerPopTextWrappingPredicate
extends Object
implements JanusGraphPredicate

A JanusGraphPredicate that just wraps a TinkerPop Text predicate. This enables JanusGraph to use TinkerPop Text predicates in places where it expects a JanusGraphPredicate.

Constructor Summary

Constructors

Constructor and Description
TinkerPopTextWrappingPredicate(org.apache.tinkerpop.gremlin.process.traversal.Text wrappedPredicate)

Method Summary

Modifier and Type	Method and Description
boolean	hasNegation() Whether this predicate has a predicate that is semantically its negation.
boolean	isQNF() Returns true if this predicate is in query normal form.
boolean	isValidCondition(Object condition) Whether the given condition is a valid condition for this predicate.
boolean	isValidValueType(Class<?> clazz) Whether the given class is a valid data type for a value to which this predicate may be applied.
JanusGraphPredicate	negate() Returns the negation of this predicate if it exists, otherwise an exception is thrown.
boolean	test(Object value, Object condition)

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.BiPredicate

and, or

Constructor Detail

TinkerPopTextWrappingPredicate

public TinkerPopTextWrappingPredicate(org.apache.tinkerpop.gremlin.process.traversal.Text wrappedPredicate)

Method Detail

isValidCondition

public boolean isValidCondition(Object condition)

Description copied from interface: JanusGraphPredicate

Whether the given condition is a valid condition for this predicate.

For instance, the Cmp.GREATER_THAN would require that the condition is comparable and not null.

Specified by:

isValidCondition in interface JanusGraphPredicate

Returns:

isValidValueType

public boolean isValidValueType(Class<?> clazz)

Description copied from interface: JanusGraphPredicate

Whether the given class is a valid data type for a value to which this predicate may be applied.

For instance, the Cmp.GREATER_THAN can only be applied to Comparable values.

Specified by:

isValidValueType in interface JanusGraphPredicate

Returns:

hasNegation

public boolean hasNegation()

Description copied from interface: JanusGraphPredicate

Whether this predicate has a predicate that is semantically its negation. For instance, Cmp.EQUAL and Cmp.NOT_EQUAL are negatives of each other.

Specified by:

hasNegation in interface JanusGraphPredicate

Returns:

negate

public JanusGraphPredicate negate()

Description copied from interface: JanusGraphPredicate

Returns the negation of this predicate if it exists, otherwise an exception is thrown. Check JanusGraphPredicate.hasNegation() first.

Specified by:

negate in interface BiPredicate<Object,Object>

Specified by:

negate in interface JanusGraphPredicate

isQNF

public boolean isQNF()

Description copied from interface: JanusGraphPredicate

Returns true if this predicate is in query normal form.

Specified by:

isQNF in interface JanusGraphPredicate

Returns:

test

public boolean test(Object value,
                    Object condition)

Specified by:

test in interface BiPredicate<Object,Object>

Specified by:

test in interface JanusGraphPredicate