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net.sf.jasperreports.crosstabs.fill.calculation
Class BucketingService

java.lang.Object
  extended by net.sf.jasperreports.crosstabs.fill.calculation.BucketingService

public class BucketingService
extends java.lang.Object

Crosstab bucketing engine.

Version:
$Id: BucketingService.java 5214 2012-04-03 14:53:44Z teodord $
Author:
Lucian Chirita (lucianc@users.sourceforge.net)

Nested Class Summary
protected  class BucketingService.BucketListMap
           
protected  class BucketingService.BucketMap
           
protected  class BucketingService.BucketTreeMap
           
protected static class BucketingService.CollectedList
           
protected static class BucketingService.CollectedListComparator
           
protected static class BucketingService.MapEntry
           
protected static class BucketingService.OrderedCollectedList
           
protected static class BucketingService.SequentialCollectedList
           
 
Field Summary
protected  BucketDefinition[] allBuckets
           
protected  BucketDefinition[][] buckets
           
protected  BucketingService.BucketMap bucketValueMap
           
protected  CrosstabCell[][] cells
           
protected  int colBucketCount
           
protected  HeaderCell[][] colHeaders
           
protected  long dataCount
           
protected static byte DIMENSION_COLUMN
           
protected static byte DIMENSION_ROW
           
protected static int DIMENSIONS
           
protected  int[] measureIndexes
           
protected  MeasureDefinition[] measures
           
protected  int origMeasureCount
           
protected  boolean processed
           
static java.lang.String PROPERTY_BUCKET_MEASURE_LIMIT
           
protected  boolean[][] retrieveTotal
           
protected  int rowBucketCount
           
protected  HeaderCell[][] rowHeaders
           
protected  boolean sorted
           
 
Constructor Summary
BucketingService(JRFillCrosstab fillCrosstab, java.util.List<BucketDefinition> rowBuckets, java.util.List<BucketDefinition> columnBuckets, java.util.List<MeasureDefinition> measures, boolean sorted, boolean[][] retrieveTotal)
          Creates a crosstab bucketing engine.
 
Method Summary
 void addData(java.lang.Object[] bucketValues, java.lang.Object[] measureValues)
          Feeds data to the engine.
protected  void addMeasure(MeasureDefinition measure, int index, java.util.List<MeasureDefinition> measuresList, java.util.List<java.lang.Integer> measureIndexList)
           
protected  void bucketMeasuresCreated()
           
protected  void checkBucketMeasureCount(int bucketMeasureCount)
           
protected  void checkTotals()
           
 void clear()
          Clears all the accumulated and computed data.
protected  void collectCols(BucketingService.BucketListMap collectedCols, BucketingService.BucketMap bucketMap)
           
protected  void computeColumnTotal(BucketingService.BucketMap bucketMap)
           
protected  void computeRowTotals(BucketingService.BucketMap bucketMap)
           
protected  void computeTotals(BucketingService.BucketMap bucketMap)
           
protected  BucketingService.BucketMap createBucketMap(int level)
           
protected  BucketingService.BucketListMap createCollectBucketMap(int level)
           
protected  void createCrosstab()
           
protected  HeaderCell[][] createHeaders(byte dimension, BucketingService.CollectedList[] headersLists, BucketingService.BucketMap totalsMap)
           
protected  BucketingService.CollectedList createHeadersList(byte dimension, BucketingService.BucketMap bucketMap, int level, boolean total)
           
protected  java.lang.Object evaluateOrderValue(BucketingService.BucketMap bucketMap, BucketDefinition.Bucket bucket)
           
protected  void fillCell(int[] pos, java.util.List<BucketDefinition.Bucket> vals, java.util.List<BucketingService.BucketMap> bucketMaps, MeasureDefinition.MeasureValue[] values)
           
protected  void fillCells(BucketingService.CollectedList[] collectedHeaders, BucketingService.BucketMap bucketMap, int level, int[] pos, java.util.List<BucketDefinition.Bucket> vals, java.util.List<BucketingService.BucketMap> bucketMaps)
           
protected  void fillHeaders(byte dimension, HeaderCell[][] headers, int level, int col, BucketingService.CollectedList list, java.util.List<BucketDefinition.Bucket> vals, BucketingService.BucketMap totalsMap)
           
protected  BucketDefinition.Bucket[] getBucketValues(java.lang.Object[] bucketValues)
           
 HeaderCell[][] getColumnHeaders()
          Returns the crosstab column headers.
 CrosstabCell[][] getCrosstabCells()
          Returns the crosstab data cells.
 MeasureDefinition.MeasureValue[] getGrandTotals()
          Returns the grand total measure values.
 MeasureDefinition.MeasureValue[] getMeasureValues(BucketDefinition.Bucket[] bucketValues)
          Returns the measure values for a set of bucket values.
 HeaderCell[][] getRowHeaders()
          Returns the crosstab row headers.
protected  MeasureDefinition.MeasureValue[] getUserMeasureValues(MeasureDefinition.MeasureValue[] values)
           
 boolean hasData()
          Checks whether there is any data accumulated by the engine.
protected  MeasureDefinition.MeasureValue[] initMeasureValues()
           
protected  MeasureDefinition.MeasureValue[] initUserMeasureValues()
           
 void processData()
          Processes the data which was fed to the engine.
protected  MeasureDefinition.MeasureValue[][][] retrieveTotals(java.util.List<BucketDefinition.Bucket> vals, java.util.List<BucketingService.BucketMap> bucketMaps)
           
protected  void sumVals(MeasureDefinition.MeasureValue[] totals, MeasureDefinition.MeasureValue[] vals)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

PROPERTY_BUCKET_MEASURE_LIMIT

public static final java.lang.String PROPERTY_BUCKET_MEASURE_LIMIT
See Also:
Constant Field Values

DIMENSION_ROW

protected static final byte DIMENSION_ROW
See Also:
Constant Field Values

DIMENSION_COLUMN

protected static final byte DIMENSION_COLUMN
See Also:
Constant Field Values

DIMENSIONS

protected static final int DIMENSIONS
See Also:
Constant Field Values

allBuckets

protected final BucketDefinition[] allBuckets

buckets

protected final BucketDefinition[][] buckets

rowBucketCount

protected final int rowBucketCount

colBucketCount

protected final int colBucketCount

retrieveTotal

protected final boolean[][] retrieveTotal

measures

protected final MeasureDefinition[] measures

origMeasureCount

protected final int origMeasureCount

measureIndexes

protected final int[] measureIndexes

sorted

protected final boolean sorted

bucketValueMap

protected final BucketingService.BucketMap bucketValueMap

dataCount

protected long dataCount

processed

protected boolean processed

colHeaders

protected HeaderCell[][] colHeaders

rowHeaders

protected HeaderCell[][] rowHeaders

cells

protected CrosstabCell[][] cells
Constructor Detail

BucketingService

public BucketingService(JRFillCrosstab fillCrosstab,
                        java.util.List<BucketDefinition> rowBuckets,
                        java.util.List<BucketDefinition> columnBuckets,
                        java.util.List<MeasureDefinition> measures,
                        boolean sorted,
                        boolean[][] retrieveTotal)
Creates a crosstab bucketing engine.

Parameters:
fillCrosstab -
rowBuckets - the row bucket definitions
columnBuckets - the column bucket definitions
measures - the measure definitions
sorted - whether the data is presorted
retrieveTotal - totals to retrieve along with the cell values
Method Detail

checkTotals

protected void checkTotals()

clear

public void clear()
Clears all the accumulated and computed data.

createBucketMap

protected BucketingService.BucketMap createBucketMap(int level)

createCollectBucketMap

protected BucketingService.BucketListMap createCollectBucketMap(int level)

addMeasure

protected void addMeasure(MeasureDefinition measure,
                          int index,
                          java.util.List<MeasureDefinition> measuresList,
                          java.util.List<java.lang.Integer> measureIndexList)

addData

public void addData(java.lang.Object[] bucketValues,
                    java.lang.Object[] measureValues)
             throws JRException
Feeds data to the engine.

Parameters:
bucketValues - the bucket values
measureValues - the measure values
Throws:
JRException

bucketMeasuresCreated

protected void bucketMeasuresCreated()

getBucketValues

protected BucketDefinition.Bucket[] getBucketValues(java.lang.Object[] bucketValues)

initMeasureValues

protected MeasureDefinition.MeasureValue[] initMeasureValues()

initUserMeasureValues

protected MeasureDefinition.MeasureValue[] initUserMeasureValues()

processData

public void processData()
                 throws JRException
Processes the data which was fed to the engine.

This method should be called after the data has been exhausted. The processing consists of total calculations and crosstab table creation.

Throws:
JRException

hasData

public boolean hasData()
Checks whether there is any data accumulated by the engine.

Returns:
true if and only if the engine has any accumulated data

getColumnHeaders

public HeaderCell[][] getColumnHeaders()
Returns the crosstab column headers.

processData() has to be called before this.

Returns:
the crosstab column headers

getRowHeaders

public HeaderCell[][] getRowHeaders()
Returns the crosstab row headers.

processData() has to be called before this.

Returns:
the crosstab row headers

getCrosstabCells

public CrosstabCell[][] getCrosstabCells()
Returns the crosstab data cells.

processData() has to be called before this.

Returns:
the crosstab data cells

getMeasureValues

public MeasureDefinition.MeasureValue[] getMeasureValues(BucketDefinition.Bucket[] bucketValues)
Returns the measure values for a set of bucket values.

Parameters:
bucketValues - the bucket values
Returns:
the measure values corresponding to the bucket values

getUserMeasureValues

protected MeasureDefinition.MeasureValue[] getUserMeasureValues(MeasureDefinition.MeasureValue[] values)

getGrandTotals

public MeasureDefinition.MeasureValue[] getGrandTotals()
Returns the grand total measure values.

Returns:
the grand total measure values

computeTotals

protected void computeTotals(BucketingService.BucketMap bucketMap)
                      throws JRException
Throws:
JRException

sumVals

protected void sumVals(MeasureDefinition.MeasureValue[] totals,
                       MeasureDefinition.MeasureValue[] vals)
                throws JRException
Throws:
JRException

computeColumnTotal

protected void computeColumnTotal(BucketingService.BucketMap bucketMap)
                           throws JRException
Throws:
JRException

computeRowTotals

protected void computeRowTotals(BucketingService.BucketMap bucketMap)
                         throws JRException
Throws:
JRException

createCrosstab

protected void createCrosstab()
                       throws JRException
Throws:
JRException

checkBucketMeasureCount

protected void checkBucketMeasureCount(int bucketMeasureCount)

collectCols

protected void collectCols(BucketingService.BucketListMap collectedCols,
                           BucketingService.BucketMap bucketMap)
                    throws JRException
Throws:
JRException

createHeadersList

protected BucketingService.CollectedList createHeadersList(byte dimension,
                                                           BucketingService.BucketMap bucketMap,
                                                           int level,
                                                           boolean total)
                                                    throws JRException
Throws:
JRException

evaluateOrderValue

protected java.lang.Object evaluateOrderValue(BucketingService.BucketMap bucketMap,
                                              BucketDefinition.Bucket bucket)
                                       throws JRException
Throws:
JRException

createHeaders

protected HeaderCell[][] createHeaders(byte dimension,
                                       BucketingService.CollectedList[] headersLists,
                                       BucketingService.BucketMap totalsMap)

fillHeaders

protected void fillHeaders(byte dimension,
                           HeaderCell[][] headers,
                           int level,
                           int col,
                           BucketingService.CollectedList list,
                           java.util.List<BucketDefinition.Bucket> vals,
                           BucketingService.BucketMap totalsMap)

fillCells

protected void fillCells(BucketingService.CollectedList[] collectedHeaders,
                         BucketingService.BucketMap bucketMap,
                         int level,
                         int[] pos,
                         java.util.List<BucketDefinition.Bucket> vals,
                         java.util.List<BucketingService.BucketMap> bucketMaps)

fillCell

protected void fillCell(int[] pos,
                        java.util.List<BucketDefinition.Bucket> vals,
                        java.util.List<BucketingService.BucketMap> bucketMaps,
                        MeasureDefinition.MeasureValue[] values)

retrieveTotals

protected MeasureDefinition.MeasureValue[][][] retrieveTotals(java.util.List<BucketDefinition.Bucket> vals,
                                                              java.util.List<BucketingService.BucketMap> bucketMaps)
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