org.apache.solr.analytics.facet

Class AnalyticsFacet

java.lang.Object

org.apache.solr.analytics.facet.AnalyticsFacet

Direct Known Subclasses:

AbstractSolrQueryFacet, PivotFacet, SortableFacet

public abstract class AnalyticsFacet
extends Object

An abstract Facet to break up Analytics data over.

Field Summary

Fields

Modifier and Type	Field and Description
protected ReductionCollectionManager	collectionManager
protected ExpressionCalculator	expressionCalculator
protected String	name
protected Map<String,ReductionCollectionManager.ReductionDataCollection>	reductionData

Constructor Summary

Constructors

Constructor and Description
AnalyticsFacet(String name)

Method Summary

Modifier and Type	Method and Description
NamedList<Object>	createOldResponse() Create the old olap-style response of the facet to be returned in the overall analytics response.
Iterable<Map<String,Object>>	createResponse() Create the response of the facet to be returned in the overall analytics response.
protected void	exportFacetValue(DataOutput output, String facetValue) Export the next facet value's set of ReductionData.
void	exportShardData(DataOutput output) Export the shard data through a bit-stream, to be imported by the importShardData(java.io.DataInput) method in the originating shard.
String	getName() Get the name of the Facet.
protected void	importFacetValue(DataInput input, String facetValue) Import the next facet value's set of ReductionData.
void	importShardData(DataInput input) Import the shard data from a bit-stream, exported by the exportShardData(java.io.DataOutput) method in the each of the collection's shards.
void	setExpressionCalculator(ExpressionCalculator expressionCalculator) Set the ExpressionCalculator that calculates the collection of the expressions requested for this facet.
void	setReductionCollectionManager(ReductionCollectionManager collectionManager) Set the ReductionCollectionManager that manages the collection of the expressions calculated with this facet.

Methods inherited from class java.lang.Object

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

Field Detail

reductionData

protected final Map<String,ReductionCollectionManager.ReductionDataCollection> reductionData

collectionManager

protected ReductionCollectionManager collectionManager

expressionCalculator

protected ExpressionCalculator expressionCalculator

name

protected final String name

Constructor Detail

AnalyticsFacet

public AnalyticsFacet(String name)

Method Detail

setReductionCollectionManager

public void setReductionCollectionManager(ReductionCollectionManager collectionManager)

Set the ReductionCollectionManager that manages the collection of the expressions calculated with this facet.

Parameters:

collectionManager - The manager for relevant expressions

setExpressionCalculator

public void setExpressionCalculator(ExpressionCalculator expressionCalculator)

Set the ExpressionCalculator that calculates the collection of the expressions requested for this facet.

Parameters:

expressionCalculator - The calculator for relevant expressions

importShardData

public void importShardData(DataInput input)
                     throws IOException

Import the shard data from a bit-stream, exported by the exportShardData(java.io.DataOutput) method in the each of the collection's shards.

Parameters:

input - The bit-stream to import the data from

Throws:

IOException - if an exception occurs while reading from the DataInput

importFacetValue

protected void importFacetValue(DataInput input,
                                String facetValue)
                         throws IOException

Import the next facet value's set of ReductionData.

Parameters:

input - the bit-stream to import the reduction data from

facetValue - the next facet value

Throws:

IOException - if an exception occurs while reading from the input

exportShardData

public void exportShardData(DataOutput output)
                     throws IOException

Export the shard data through a bit-stream, to be imported by the importShardData(java.io.DataInput) method in the originating shard.

Parameters:

output - The bit-stream to output the data through

Throws:

IOException - if an exception occurs while writing to the DataOutput

exportFacetValue

protected void exportFacetValue(DataOutput output,
                                String facetValue)
                         throws IOException

Export the next facet value's set of ReductionData.

Parameters:

output - the bit-stream to output the reduction data to

facetValue - the next facet value

Throws:

IOException - if an exception occurs while reading from the input

createOldResponse

public NamedList<Object> createOldResponse()

Create the old olap-style response of the facet to be returned in the overall analytics response.

Returns:

the response of the facet

createResponse

public Iterable<Map<String,Object>> createResponse()

Create the response of the facet to be returned in the overall analytics response.

Returns:

the response of the facet

getName

public String getName()

Get the name of the Facet. This is unique for the grouping.

Returns:

The name of the Facet