org.apache.metamodel.data

Class UnionDataSet

java.lang.Object

org.apache.metamodel.util.BaseObject

org.apache.metamodel.data.AbstractDataSet

org.apache.metamodel.data.UnionDataSet

All Implemented Interfaces:

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

public class UnionDataSet
extends AbstractDataSet
implements WrappingDataSet

A DataSet that represents the union of two or more other data sets

Method Summary

Modifier and Type	Method and Description
Row	getRow()
DataSet	getWrappedDataSet() Gets the DataSet that is wrapped by this WrappingDataSet.
boolean	next() Moves forward to the next row.
static DataSet	ofDataSets(DataSetHeader header, Collection<DataSet> dataSets)
static DataSet	ofQueries(DataSetHeader header, Collection<InvokableQuery> queries)

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

Method Detail

ofQueries

public static DataSet ofQueries(DataSetHeader header,
                                Collection<InvokableQuery> queries)

ofDataSets

public static DataSet ofDataSets(DataSetHeader header,
                                 Collection<DataSet> dataSets)

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.

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: