org.dashbuilder.dataset

Interface DataSetMetadata

All Known Implementing Classes:

DataSetMetadataImpl

public interface DataSetMetadata

Metadata associated with a data set instance

Method Summary

Modifier and Type	Method and Description
String	getColumnId(int columnIndex) Get the identifier of the specified column.
List<String>	getColumnIds() Get the column ids
ColumnType	getColumnType(int columnIndex) Get the type of the specified column.
ColumnType	getColumnType(String columnId) Get the type of the specified column.
List<ColumnType>	getColumnTypes() Get the column types
DataSetDef	getDefinition() Get the definition this data set has been created from.
int	getEstimatedSize() Get the estimated size in bytes.
int	getNumberOfColumns() Get the number of columns.
int	getNumberOfRows() Get the number of rows.
String	getUUID() The unique identifier for this data set.

Method Detail

getUUID

String getUUID()

The unique identifier for this data set.

getNumberOfRows

int getNumberOfRows()

Get the number of rows.

getNumberOfColumns

int getNumberOfColumns()

Get the number of columns.

getColumnId

String getColumnId(int columnIndex)

Get the identifier of the specified column.

Parameters:

columnIndex - The column index (starting at 0).

getColumnIds

List<String> getColumnIds()

Get the column ids

getColumnType

ColumnType getColumnType(int columnIndex)

Get the type of the specified column.

Parameters:

columnIndex - The column index (starting at 0).

getColumnType

ColumnType getColumnType(String columnId)

Get the type of the specified column.

Parameters:

columnId - The column id.

getColumnTypes

List<ColumnType> getColumnTypes()

Get the column types

getEstimatedSize

int getEstimatedSize()

Get the estimated size in bytes.

getDefinition

DataSetDef getDefinition()

Get the definition this data set has been created from. Is null for manually created data set instances.