org.dashbuilder.dataset.engine.group

Class IntervalBuilderDynamicLabel

java.lang.Object

org.dashbuilder.dataset.engine.group.IntervalBuilderDynamicLabel

All Implemented Interfaces:

IntervalBuilder

public class IntervalBuilderDynamicLabel
extends Object
implements IntervalBuilder

Interval builder for label columns which generates one interval per label.

Constructor Summary

Constructors

Constructor and Description
IntervalBuilderDynamicLabel()

Method Summary

Modifier and Type	Method and Description
IntervalList	build(DataColumn dataColumn) Build a list of intervals according to the column group settings.
IntervalList	build(DataSetHandler ctx, ColumnGroup columnGroup) Build a list of intervals according to the column group settings.

Methods inherited from class java.lang.Object

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

Constructor Detail

IntervalBuilderDynamicLabel

public IntervalBuilderDynamicLabel()

Method Detail

build

public IntervalList build(DataSetHandler ctx,
                          ColumnGroup columnGroup)

Description copied from interface: IntervalBuilder

Build a list of intervals according to the column group settings. The resulting intervals contain the row references belonging to it.

Specified by:

build in interface IntervalBuilder

Parameters:

ctx - The current operation engine data set handler context.

columnGroup - The column group operation to apply.

Returns:

A list of intervals containing a split of all the values for the given column.

build

public IntervalList build(DataColumn dataColumn)

Description copied from interface: IntervalBuilder

Build a list of intervals according to the column group settings. The resulting intervals are empty (no row references in).

Specified by:

build in interface IntervalBuilder

Parameters:

dataColumn - The data set grouped column

Returns:

A list of intervals containing a split of all the values for the given column.