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

Class LatLonVectorsEvaluator

java.lang.Object

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

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

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

All Implemented Interfaces:

Serializable, ManyValueWorker, StreamEvaluator, ValueWorker, Expressible

public class LatLonVectorsEvaluator
extends RecursiveObjectEvaluator
implements ManyValueWorker

The LatLonVectorsEvaluator maps to the latlonVectors Math Expression. The latlonVectors expression takes a list of Tuples that contain a lat,lon point field and a named parameter called field as input. The field parameter specifies which field to parse the lat,lon vectors from in the Tuples.

The latlonVectors function returns a matrix of lat,lon vectors. Each row in the matrix contains a single lat,lon pair.

See Also:

Serialized Form

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
LatLonVectorsEvaluator(StreamExpression expression, StreamFactory factory)

Method Summary

Modifier and Type	Method	Description
Object	doWork(Object... objects)

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

evaluate, getStreamContext, normalizeInputType, 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

LatLonVectorsEvaluator

public LatLonVectorsEvaluator(StreamExpression expression,
                              StreamFactory factory)
                       throws IOException

Throws:

IOException

Method Detail

doWork

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

Specified by:

doWork in interface ManyValueWorker

Specified by:

doWork in interface ValueWorker

Throws:

IOException