Package org.apache.solr.client.solrj.io.eval

Class IsNullEvaluator

java.lang.Object

org.apache.solr.client.solrj.io.eval.RecursiveEvaluator

org.apache.solr.client.solrj.io.eval.RecursiveBooleanEvaluator

org.apache.solr.client.solrj.io.eval.IsNullEvaluator

All Implemented Interfaces:

Serializable, ManyValueWorker, StreamEvaluator, ValueWorker, Expressible

public class IsNullEvaluator
extends RecursiveBooleanEvaluator
implements ManyValueWorker

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.solr.client.solrj.io.eval.RecursiveBooleanEvaluator

RecursiveBooleanEvaluator.BooleanChecker, RecursiveBooleanEvaluator.Checker, RecursiveBooleanEvaluator.NullChecker, RecursiveBooleanEvaluator.NumberChecker, RecursiveBooleanEvaluator.StringChecker

Field Summary

Fields

Modifier and Type	Field	Description
protected static long	serialVersionUID

Fields inherited from class org.apache.solr.client.solrj.io.eval.RecursiveEvaluator

constructingFactory, containedEvaluators, nodeId, streamContext

Constructor Summary

Constructors

Constructor	Description
IsNullEvaluator(StreamExpression expression, StreamFactory factory)

Method Summary

Modifier and Type	Method	Description
protected RecursiveBooleanEvaluator.Checker	constructChecker(Object value)
Object	doWork(Object... values)

Methods inherited from class org.apache.solr.client.solrj.io.eval.RecursiveBooleanEvaluator

normalizeInputType

Methods inherited from class org.apache.solr.client.solrj.io.eval.RecursiveEvaluator

evaluate, getStreamContext, normalizeOutputType, recursivelyEvaluate, setStreamContext, toExplanation, toExpression

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.solr.client.solrj.io.eval.StreamEvaluator

evaluateOverContext

Field Detail

serialVersionUID

protected static final long serialVersionUID

See Also:

Constant Field Values

Constructor Detail

IsNullEvaluator

public IsNullEvaluator(StreamExpression expression,
                       StreamFactory factory)
                throws IOException

Throws:

IOException

Method Detail

doWork

public Object doWork(Object... values)
              throws IOException

Specified by:

doWork in interface ManyValueWorker

Specified by:

doWork in interface ValueWorker

Overrides:

doWork in class RecursiveBooleanEvaluator

Throws:

IOException

constructChecker

protected RecursiveBooleanEvaluator.Checker constructChecker(Object value)
                                                      throws IOException

Specified by:

constructChecker in class RecursiveBooleanEvaluator

Throws:

IOException