org.apache.metamodel.data

Class SubSelectionDataSet

java.lang.Object

org.apache.metamodel.util.BaseObject

org.apache.metamodel.data.AbstractDataSet

org.apache.metamodel.data.SubSelectionDataSet

All Implemented Interfaces:

Closeable, AutoCloseable, Iterable<Row>, DataSet, WrappingDataSet

public final class SubSelectionDataSet
extends AbstractDataSet
implements WrappingDataSet

DataSet wrapper for doing subselection.

Constructor Summary

Constructors

Constructor and Description
SubSelectionDataSet(List<SelectItem> selectItems, DataSet dataSet)
SubSelectionDataSet(SelectItem[] selectItemsArray, DataSet dataSet)

Method Summary

Modifier and Type	Method and Description
void	close() Closes the DataSet and any resources it may be holding.
Row	getRow()
DataSet	getWrappedDataSet() Gets the DataSet that is wrapped by this WrappingDataSet.
boolean	next() Moves forward to the next row.

Methods inherited from class org.apache.metamodel.data.AbstractDataSet

decorateIdentity, getHeader, getSelectItems, indexOf, iterator, toObjectArrays, toRows, toString

Methods inherited from class org.apache.metamodel.util.BaseObject

classEquals, equals, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.metamodel.data.DataSet

getSelectItems, indexOf, iterator, toObjectArrays, toRows

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

SubSelectionDataSet

public SubSelectionDataSet(SelectItem[] selectItemsArray,
                           DataSet dataSet)

SubSelectionDataSet

public SubSelectionDataSet(List<SelectItem> selectItems,
                           DataSet dataSet)

Method Detail

getWrappedDataSet

public DataSet getWrappedDataSet()

Description copied from interface: WrappingDataSet

Gets the DataSet that is wrapped by this WrappingDataSet.

Specified by:

getWrappedDataSet in interface WrappingDataSet

Returns:

next

public boolean next()

Description copied from interface: DataSet

Moves forward to the next row.

Specified by:

next in interface DataSet

Returns:

true if there is a next row or false if not.

getRow

public Row getRow()

Specified by:

getRow in interface DataSet

Returns:

the current row.

close

public void close()

Description copied from class: AbstractDataSet

Closes the DataSet and any resources it may be holding.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface DataSet

Overrides:

close in class AbstractDataSet