org.apache.metamodel.data

Class ScalarFunctionDataSet

java.lang.Object

org.apache.metamodel.util.BaseObject

org.apache.metamodel.data.AbstractDataSet

org.apache.metamodel.data.ScalarFunctionDataSet

All Implemented Interfaces:

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

public class ScalarFunctionDataSet
extends AbstractDataSet
implements WrappingDataSet

A DataSet that enhances another DataSet with ScalarFunctions.

Constructor Summary

Constructors

Constructor and Description
ScalarFunctionDataSet(List<SelectItem> scalarFunctionSelectItemsToEvaluate, DataSet dataSet)

Method Summary

Modifier and Type	Method and Description
Row	getRow()
List<SelectItem>	getScalarFunctionSelectItemsToEvaluate()
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

close, 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

close, getSelectItems, indexOf, iterator, toObjectArrays, toRows

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

ScalarFunctionDataSet

public ScalarFunctionDataSet(List<SelectItem> scalarFunctionSelectItemsToEvaluate,
                             DataSet dataSet)

Method Detail

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.

getScalarFunctionSelectItemsToEvaluate

public List<SelectItem> getScalarFunctionSelectItemsToEvaluate()

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: