Package org.apache.tinkerpop.gremlin.process.traversal.util

Class AndP<V>

java.lang.Object

org.apache.tinkerpop.gremlin.process.traversal.P<V>

org.apache.tinkerpop.gremlin.process.traversal.util.ConnectiveP<V>

org.apache.tinkerpop.gremlin.process.traversal.util.AndP<V>

All Implemented Interfaces:

Serializable, Cloneable, Predicate<V>

public final class AndP<V>
extends ConnectiveP<V>

Author:

Marko A. Rodriguez (http://markorodriguez.com)

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.apache.tinkerpop.gremlin.process.traversal.util.ConnectiveP

predicates

Fields inherited from class org.apache.tinkerpop.gremlin.process.traversal.P

biPredicate, literals, variables

Constructor Summary

Constructors

Constructor	Description
AndP(List<P<V>> predicates)

Method Summary

Modifier and Type	Method	Description
P<V>	and(Predicate<? super V> predicate)
AndP<V>	clone()
boolean	isResolvedEmpty()	Returns true if the most recent call to P.resolve(Traverser.Admin) produced no results for a scalar predicate, meaning there is no meaningful comparison value.
P<V>	negate()
void	resolve(Traverser.Admin<?> traverser)	Resolves child predicates with short-circuiting.
String	toString()

Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.util.ConnectiveP

equals, getGValues, getPredicates, hashCode, hasTraversal, isParameterized, negate, or, updateVariable

Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.P

between, between, collectTraversals, eq, eq, eq, getBiPredicate, getChildTraversals, getPredicateName, getValue, gt, gt, gt, gte, gte, gte, inside, inside, lt, lt, lt, lte, lte, lte, neq, neq, neq, not, outside, outside, setValue, test, test, typeOf, typeOf, typeOf, within, within, within, within, within, without, without, without, without, without

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

AndP

public AndP(List<P<V>> predicates)

Method Details

and

public P<V> and(Predicate<? super V> predicate)

Specified by:

and in interface Predicate<V>

Overrides:

and in class ConnectiveP<V>

negate

public P<V> negate()

Specified by:

negate in interface Predicate<V>

Overrides:

negate in class ConnectiveP<V>

resolve

public void resolve(Traverser.Admin<?> traverser)

Resolves child predicates with short-circuiting. Because a conjunction fails as soon as any child predicate cannot be satisfied, resolution stops at the first child that resolves empty (i.e. a scalar predicate whose child traversal produced no comparison value). This avoids evaluating the remaining child traversals, which may be expensive. Collection predicates (within/without) never resolve empty (they resolve to an empty collection), so they do not trigger the short-circuit.

Overrides:

resolve in class ConnectiveP<V>

isResolvedEmpty

public boolean isResolvedEmpty()

Description copied from class: P

Returns true if the most recent call to P.resolve(Traverser.Admin) produced no results for a scalar predicate, meaning there is no meaningful comparison value.

Overrides:

isResolvedEmpty in class P<V>

toString

public String toString()

Overrides:

toString in class P<V>

clone

public AndP<V> clone()

Overrides:

clone in class ConnectiveP<V>