org.knime.core.data
Interface DataTable

All Superinterfaces:

Iterable<DataRow>

All Known Subinterfaces:

BufferedDataTable.KnowsRowCountTable, DataArray

All Known Implementing Classes:

AffineTransTable, AppendedColumnTable, AppendedRowsTable, ARFFTable, BasisFunctionLearnerTable, BufferedDataTable, CombinedTable, ConcatenateTable, ContainerTable, DefaultDataArray, DefaultTable, ExtensionTable, FileReaderPreviewTable, FileTable, FilterColumnTable, FilterRowTable, FrequentItemSetTable, FuzzyHierarchyFilterRowContainer, JoinedTable, JoinedTable, MissingValueHandling2Table, NominalTable, RearrangeColumnsTable, ReplacedColumnsTable, RowFilterTable, SortedTable, StatisticsTable, TableSpecReplacerTable, WrappedTable

public interface DataTable
extends Iterable<DataRow>

Most general data interface in table structure with a fixed number of columns and iterable rows (no random access).

Each DataTable is a read-only container of DataRow elements which are returned by the RowIterator. Each row must have the same number of DataCell elements (columns), is read-only, and must provide a unique row identifier. A table also contains a DataTableSpec member which provides information about the structure of the table. The DataTableSpec consists of DataColumnSpecs which contain information about the column, e.g. name, type, and possible values etc.

Author:

Thomas Gabriel, University of Konstanz

See Also:

DataCell, DataRow, RowIterator

Method Summary

DataTableSpec	getDataTableSpec() Returns the DataTableSpec object of this table which gives information about the structure of this data table.
RowIterator	iterator() Returns a row iterator which returns each row one-by-one from the table.

Method Detail

getDataTableSpec

DataTableSpec getDataTableSpec()

Returns the DataTableSpec object of this table which gives information about the structure of this data table.

Returns:

the DataTableSpec of this table

iterator

RowIterator iterator()

Returns a row iterator which returns each row one-by-one from the table.

Specified by:

iterator in interface Iterable<DataRow>

Returns:

row iterator

See Also:

DataRow