org.apache.solr.client.solrj.io.comp

Class MultipleFieldComparator

java.lang.Object

org.apache.solr.client.solrj.io.comp.MultipleFieldComparator

All Implemented Interfaces:

Serializable, Comparator<Tuple>, StreamComparator, Expressible

public class MultipleFieldComparator
extends Object
implements StreamComparator

Wraps multiple Comparators to provide sub-sorting.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MultipleFieldComparator(StreamComparator... comps)

Method Summary

Modifier and Type	Method and Description
StreamComparator	append(StreamComparator other)
int	compare(Tuple t1, Tuple t2)
MultipleFieldComparator	copyAliased(Map<String,String> aliases)
StreamComparator[]	getComps()
boolean	isDerivedFrom(StreamComparator base)
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 java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

MultipleFieldComparator

public MultipleFieldComparator(StreamComparator... comps)

Method Detail

getComps

public StreamComparator[] getComps()

compare

public int compare(Tuple t1,
                   Tuple t2)

Specified by:

compare in interface Comparator<Tuple>

toExpression

public StreamExpressionParameter toExpression(StreamFactory factory)
                                       throws IOException

Specified by:

toExpression in interface Expressible

Throws:

IOException

isDerivedFrom

public boolean isDerivedFrom(StreamComparator base)

Specified by:

isDerivedFrom in interface StreamComparator

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

copyAliased

public MultipleFieldComparator copyAliased(Map<String,String> aliases)

Specified by:

copyAliased in interface StreamComparator

append

public StreamComparator append(StreamComparator other)

Specified by:

append in interface StreamComparator