org.s1ck.gdl.model.predicates

Interface Predicate

All Superinterfaces:

Serializable

All Known Implementing Classes:

And, Comparison, Not, Or, Xor

public interface Predicate
extends Serializable

Represents a predicate defined on a query vertex or edge.

Method Summary

Modifier and Type	Method and Description
static List<Predicate>	fromGraphElement(GraphElement element, String defaultLabel) Builds predicates from label and property definitions embedded at an GraphElement.
Predicate[]	getArguments() Returns the predicates arguments
Set<String>	getVariables() Returns the variables which are referenced by the predicate

Method Detail

fromGraphElement

static List<Predicate> fromGraphElement(GraphElement element,
                                        String defaultLabel)

Builds predicates from label and property definitions embedded at an GraphElement.

Parameters:

element - the element to extract from

Returns:

extracted predicates

getArguments

Predicate[] getArguments()

Returns the predicates arguments

Returns:

The predicates arguments

getVariables

Set<String> getVariables()

Returns the variables which are referenced by the predicate

Returns:

referenced variables