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

Class ConcatOperation

java.lang.Object

org.apache.solr.client.solrj.io.ops.ConcatOperation

All Implemented Interfaces:

Serializable, StreamOperation, Expressible

public class ConcatOperation
extends Object
implements StreamOperation

Concatenates fields and adds them to the tuple. Example concat(fields="month,day,year", delim="-", as="id")

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
ConcatOperation(String[] fields, String as, String delim)
ConcatOperation(StreamExpression expression, StreamFactory factory)

Method Summary

Modifier and Type	Method	Description
void	operate(Tuple tuple)
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

Constructor Detail

ConcatOperation

public ConcatOperation(String[] fields,
                       String as,
                       String delim)

ConcatOperation

public ConcatOperation(StreamExpression expression,
                       StreamFactory factory)
                throws IOException

Throws:

IOException

Method Detail

operate

public void operate(Tuple tuple)

Specified by:

operate in interface StreamOperation

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