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

Class RecursiveEvaluator

java.lang.Object

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

All Implemented Interfaces:

Serializable, StreamEvaluator, ValueWorker, Expressible

Direct Known Subclasses:

ColumnEvaluator, MonteCarloEvaluator, RecursiveBooleanEvaluator, RecursiveNumericEvaluator, RecursiveNumericListEvaluator, RecursiveObjectEvaluator, RecursiveTemporalEvaluator

public abstract class RecursiveEvaluator
extends Object
implements StreamEvaluator, ValueWorker

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected StreamFactory	constructingFactory
protected List<StreamEvaluator>	containedEvaluators
protected UUID	nodeId
protected static long	serialVersionUID
protected StreamContext	streamContext

Constructor Summary

Constructors

Constructor and Description
RecursiveEvaluator(StreamExpression expression, StreamFactory factory)
RecursiveEvaluator(StreamExpression expression, StreamFactory factory, List<String> ignoredNamedParameters)

Method Summary

Modifier and Type	Method and Description
Object	evaluate(Tuple tuple)
StreamContext	getStreamContext()
protected Object	normalizeInputType(Object value)
protected Object	normalizeOutputType(Object value)
List<Object>	recursivelyEvaluate(Tuple tuple)
void	setStreamContext(StreamContext context)
Explanation	toExplanation(StreamFactory factory) Returns an explanation about the stream object
StreamExpressionParameter	toExpression(StreamFactory factory)

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

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

doWork

Field Detail

serialVersionUID

protected static final long serialVersionUID

See Also:

Constant Field Values

streamContext

protected StreamContext streamContext

nodeId

protected UUID nodeId

constructingFactory

protected StreamFactory constructingFactory

containedEvaluators

protected List<StreamEvaluator> containedEvaluators

Constructor Detail

RecursiveEvaluator

public RecursiveEvaluator(StreamExpression expression,
                          StreamFactory factory)
                   throws IOException

Throws:

IOException

RecursiveEvaluator

public RecursiveEvaluator(StreamExpression expression,
                          StreamFactory factory,
                          List<String> ignoredNamedParameters)
                   throws IOException

Throws:

IOException

Method Detail

normalizeInputType

protected Object normalizeInputType(Object value)

normalizeOutputType

protected Object normalizeOutputType(Object value)

evaluate

public Object evaluate(Tuple tuple)
                throws IOException

Specified by:

evaluate in interface StreamEvaluator

Throws:

IOException

recursivelyEvaluate

public List<Object> recursivelyEvaluate(Tuple tuple)
                                 throws IOException

Throws:

IOException

toExpression

public StreamExpressionParameter toExpression(StreamFactory factory)
                                       throws IOException

Specified by:

toExpression in interface Expressible

Throws:

IOException

toExplanation

public Explanation toExplanation(StreamFactory factory)
                          throws IOException

Description copied from interface: Expressible

Returns an explanation about the stream object

Specified by:

toExplanation in interface Expressible

Parameters:

factory - Stream factory for this, contains information about the function name

Returns:

Explanation about this stream object containing explanations of any child stream objects

Throws:

IOException - throw on any error

setStreamContext

public void setStreamContext(StreamContext context)

Specified by:

setStreamContext in interface StreamEvaluator

getStreamContext

public StreamContext getStreamContext()

Specified by:

getStreamContext in interface StreamEvaluator