org.janusgraph.graphdb.query.condition

Interface Condition<E extends JanusGraphElement>

All Known Implementing Classes:

And, DirectionCondition, FixedCondition, IncidenceCondition, Literal, MultiCondition, Not, Or, PredicateCondition, RelationCategory, RelationTypeCondition, VisibilityFilterCondition

public interface Condition<E extends JanusGraphElement>

A logical condition which evaluates against a provided element to true or false.

A condition can be nested to form complex logical expressions with AND, OR and NOT. A condition is either a literal, a negation of a condition, or a logical combination of conditions (AND, OR). If a condition has sub-conditions we consider those to be children.

Author:

Matthias Broecheler ([email protected])

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	Condition.Type

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object other)
boolean	evaluate(E element)
Iterable<Condition<E>>	getChildren()
Condition.Type	getType()
boolean	hasChildren()
int	hashCode()
int	numChildren()
String	toString()

Method Detail

getType

Condition.Type getType()

getChildren

Iterable<Condition<E>> getChildren()

hasChildren

boolean hasChildren()

numChildren

int numChildren()

evaluate

boolean evaluate(E element)

hashCode

int hashCode()

Overrides:

hashCode in class Object

equals

boolean equals(Object other)

Overrides:

equals in class Object

toString

String toString()

Overrides:

toString in class Object