org.apache.tinkerpop.gremlin.process.traversal.strategy.verification

Class ReadOnlyStrategy

java.lang.Object

org.apache.tinkerpop.gremlin.process.traversal.strategy.AbstractTraversalStrategy<TraversalStrategy.VerificationStrategy>

org.apache.tinkerpop.gremlin.process.traversal.strategy.verification.ReadOnlyStrategy

All Implemented Interfaces:

Serializable, Comparable<Class<? extends TraversalStrategy>>, TraversalStrategy<TraversalStrategy.VerificationStrategy>, TraversalStrategy.VerificationStrategy

public final class ReadOnlyStrategy
extends AbstractTraversalStrategy<TraversalStrategy.VerificationStrategy>
implements TraversalStrategy.VerificationStrategy

Detects steps marked with Mutating and throws an IllegalStateException if one is found.

Author:

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

See Also:

Serialized Form

Example:

 __.out().addE()                 // throws an VerificationException
 __.addV()                       // throws an VerificationException
 __.property(key,value)          // throws an VerificationException
 __.out().drop()                 // throws an VerificationException
 

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy

TraversalStrategy.DecorationStrategy, TraversalStrategy.FinalizationStrategy, TraversalStrategy.OptimizationStrategy, TraversalStrategy.ProviderOptimizationStrategy, TraversalStrategy.VerificationStrategy

Method Summary

Modifier and Type	Method and Description
void	apply(Traversal.Admin<?,?> traversal)
Set<Class<? extends TraversalStrategy.VerificationStrategy>>	applyPost() The set of strategies that must be executed after this strategy is executed.
static ReadOnlyStrategy	instance()

Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.strategy.AbstractTraversalStrategy

equals, hashCode, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy.VerificationStrategy

compareTo, getTraversalCategory

Methods inherited from interface org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy

applyPrior

Method Detail

apply

public void apply(Traversal.Admin<?,?> traversal)

Specified by:

apply in interface TraversalStrategy<TraversalStrategy.VerificationStrategy>

applyPost

public Set<Class<? extends TraversalStrategy.VerificationStrategy>> applyPost()

Description copied from interface: TraversalStrategy

The set of strategies that must be executed after this strategy is executed. If there are no ordering requirements, the default implementation returns an empty set.

Specified by:

applyPost in interface TraversalStrategy<TraversalStrategy.VerificationStrategy>

Returns:

the set of strategies that must be executed post this one

instance

public static ReadOnlyStrategy instance()