Package org.dashbuilder.dataset.impl

Class DataSetImpl

java.lang.Object

org.dashbuilder.dataset.impl.DataSetImpl

All Implemented Interfaces:

DataSet

public class DataSetImpl
extends Object
implements DataSet

Field Summary

Fields

Modifier and Type	Field	Description
protected List<DataColumnImpl>	columns
protected Date	creationDate
protected DataSetDef	definition
protected int	rowCountNonTrimmed
protected String	uuid

Constructor Summary

Constructors

Constructor	Description
DataSetImpl()

Method Summary

Modifier and Type	Method	Description
protected void	_setEmptyRowAt(int row, boolean insert)
protected void	_setValueAt(int row, int column, Object value, boolean insert)
protected void	_setValuesAt(int row, boolean insert, Object... values)
DataSet	addColumn(String id, ColumnType type)	Add a brand new column.
DataSet	addColumn(String id, ColumnType type, List values)	Add a brand new column populated with the given values.
DataSet	addColumn(DataColumn column)	Add a brand new column.
DataSet	addEmptyRowAt(int row)	Add an empty row at the given position.
DataSet	addValueAt(int row, int column, Object value)
DataSet	addValueAt(int column, Object value)
DataSet	addValues(Object... values)	Add a row at the end of the data set.
DataSet	addValuesAt(int row, Object... values)	Add a row at the given position.
DataSetImpl	cloneEmpty()	Build a data set with the same structure as this but containing no data.
DataSetImpl	cloneInstance()	Build a data set with the same structure and content.
Object	convert(DataColumn column, Object value)
Date	convertToDate(Object value)
Double	convertToDouble(Object value)
String	convertToString(Object value)
boolean	equals(Object obj)
DataColumn	getColumnById(String id)	Get a column by its id.
DataColumn	getColumnByIndex(int index)	Get a column by its index (starting at 0).
int	getColumnIndex(DataColumn dataColumn)	Get a column's internal DataSet index.
List<DataColumn>	getColumns()	The dataset columns
Date	getCreationDate()	The creation date
DataSetDef	getDefinition()	The data set definition
long	getEstimatedSize()	Return the estimated memory (in bytes) the data set is consuming.
DataSetMetadata	getMetadata()	The metadata
int	getRowCount()	Get the number of rows in the dataset.
int	getRowCountNonTrimmed()	If this data set is the result of a trim operation this method will return the total number of rows existing before trim.
String	getUUID()	The unique data set identifier.
Object	getValueAt(int row, int column)	Get the value at a given cell.
Object	getValueAt(int row, String columnId)	Get the value at a given cell.
protected Object	getValueAt(int row, DataColumn column)
boolean	isEmpty()
DataSet	removeColumn(String id)	Removes an existing column.
void	setColumns(List<DataColumn> columnList)
void	setCreationDate(Date creationDate)	The creation date
void	setDefinition(DataSetDef definition)	The data set definition
void	setRowCountNonTrimmed(int rowCountNonTrimmed)	If this data set is the result of a trim operation this method will return the total number of rows existing before trim.
void	setUUID(String uuid)	Set an unique identifier to this data set.
DataSet	setValueAt(int row, int column, Object value)	Set the value at a given cell.
DataSet	setValuesAt(int row, Object... values)	Set all the values for a given row.
DataSet	trim(int offset, int rows)	Returns a data set containing only the specified row sub set.
DataSet	trim(List<Integer> rows)	Returns a data set containing only the specified row sub set.

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

definition

protected DataSetDef definition

uuid

protected String uuid

creationDate

protected Date creationDate

columns

protected List<DataColumnImpl> columns

rowCountNonTrimmed

protected int rowCountNonTrimmed

Constructor Detail

DataSetImpl

public DataSetImpl()

Method Detail

getMetadata

public DataSetMetadata getMetadata()

Description copied from interface: DataSet

The metadata

Specified by:

getMetadata in interface DataSet

getDefinition

public DataSetDef getDefinition()

Description copied from interface: DataSet

The data set definition

Specified by:

getDefinition in interface DataSet

setDefinition

public void setDefinition(DataSetDef definition)

Description copied from interface: DataSet

The data set definition

Specified by:

setDefinition in interface DataSet

getUUID

public String getUUID()

Description copied from interface: DataSet

The unique data set identifier.

Specified by:

getUUID in interface DataSet

setUUID

public void setUUID(String uuid)

Description copied from interface: DataSet

Set an unique identifier to this data set.

Specified by:

setUUID in interface DataSet

getCreationDate

public Date getCreationDate()

Description copied from interface: DataSet

The creation date

Specified by:

getCreationDate in interface DataSet

setCreationDate

public void setCreationDate(Date creationDate)

Description copied from interface: DataSet

The creation date

Specified by:

setCreationDate in interface DataSet

getColumns

public List<DataColumn> getColumns()

Description copied from interface: DataSet

The dataset columns

Specified by:

getColumns in interface DataSet

setColumns

public void setColumns(List<DataColumn> columnList)

Specified by:

setColumns in interface DataSet

getColumnById

public DataColumn getColumnById(String id)

Description copied from interface: DataSet

Get a column by its id.

Specified by:

getColumnById in interface DataSet

getColumnByIndex

public DataColumn getColumnByIndex(int index)

Description copied from interface: DataSet

Get a column by its index (starting at 0).

Specified by:

getColumnByIndex in interface DataSet

getColumnIndex

public int getColumnIndex(DataColumn dataColumn)

Description copied from interface: DataSet

Get a column's internal DataSet index.

Specified by:

getColumnIndex in interface DataSet

addColumn

public DataSet addColumn(String id,
                         ColumnType type)

Description copied from interface: DataSet

Add a brand new column.

Specified by:

addColumn in interface DataSet

addColumn

public DataSet addColumn(String id,
                         ColumnType type,
                         List values)

Description copied from interface: DataSet

Add a brand new column populated with the given values.

Specified by:

addColumn in interface DataSet

addColumn

public DataSet addColumn(DataColumn column)

Description copied from interface: DataSet

Add a brand new column.

Specified by:

addColumn in interface DataSet

removeColumn

public DataSet removeColumn(String id)

Description copied from interface: DataSet

Removes an existing column.

Specified by:

removeColumn in interface DataSet

isEmpty

public boolean isEmpty()

getRowCount

public int getRowCount()

Description copied from interface: DataSet

Get the number of rows in the dataset.

Specified by:

getRowCount in interface DataSet

getRowCountNonTrimmed

public int getRowCountNonTrimmed()

Description copied from interface: DataSet

If this data set is the result of a trim operation this method will return the total number of rows existing before trim.

Specified by:

getRowCountNonTrimmed in interface DataSet

Returns:

The total number of existing rows before any trim operation (if any) or -1 if no trim operation has been carried out.

setRowCountNonTrimmed

public void setRowCountNonTrimmed(int rowCountNonTrimmed)

Description copied from interface: DataSet

If this data set is the result of a trim operation this method will return the total number of rows existing before trim.

Specified by:

setRowCountNonTrimmed in interface DataSet

getValueAt

public Object getValueAt(int row,
                         String columnId)

Description copied from interface: DataSet

Get the value at a given cell.

Specified by:

getValueAt in interface DataSet

Parameters:

row - The cell row (the first row is 0).

columnId - The cell column id.

getValueAt

public Object getValueAt(int row,
                         int column)

Description copied from interface: DataSet

Get the value at a given cell.

Specified by:

getValueAt in interface DataSet

Parameters:

row - The cell row (the first row is 0).

column - The cell column (the first column is 0).

getValueAt

protected Object getValueAt(int row,
                            DataColumn column)

setValueAt

public DataSet setValueAt(int row,
                          int column,
                          Object value)

Description copied from interface: DataSet

Set the value at a given cell.

Specified by:

setValueAt in interface DataSet

Parameters:

row - The cell row (the first row is 0).

column - The cell column (the first column is 0).

addValueAt

public DataSet addValueAt(int row,
                          int column,
                          Object value)

addValueAt

public DataSet addValueAt(int column,
                          Object value)

_setValueAt

protected void _setValueAt(int row,
                           int column,
                           Object value,
                           boolean insert)

setValuesAt

public DataSet setValuesAt(int row,
                           Object... values)

Description copied from interface: DataSet

Set all the values for a given row.

Specified by:

setValuesAt in interface DataSet

Parameters:

row - The cell row (the first row is 0).

addValuesAt

public DataSet addValuesAt(int row,
                           Object... values)

Description copied from interface: DataSet

Add a row at the given position.

Specified by:

addValuesAt in interface DataSet

Parameters:

row - The cell row (the first row is 0).

addValues

public DataSet addValues(Object... values)

Description copied from interface: DataSet

Add a row at the end of the data set.

Specified by:

addValues in interface DataSet

_setValuesAt

protected void _setValuesAt(int row,
                            boolean insert,
                            Object... values)

addEmptyRowAt

public DataSet addEmptyRowAt(int row)

Description copied from interface: DataSet

Add an empty row at the given position.

Specified by:

addEmptyRowAt in interface DataSet

Parameters:

row - The cell row (the first row is 0).

_setEmptyRowAt

protected void _setEmptyRowAt(int row,
                              boolean insert)

convert

public Object convert(DataColumn column,
                      Object value)

convertToString

public String convertToString(Object value)

convertToDouble

public Double convertToDouble(Object value)

convertToDate

public Date convertToDate(Object value)

trim

public DataSet trim(int offset,
                    int rows)

Description copied from interface: DataSet

Returns a data set containing only the specified row sub set.

Specified by:

trim in interface DataSet

Parameters:

offset - The position where the row sub set starts (starting at 0).

rows - The number of rows to get.

Returns:

A trimmed data set.

trim

public DataSet trim(List<Integer> rows)

Description copied from interface: DataSet

Returns a data set containing only the specified row sub set.

Specified by:

trim in interface DataSet

Parameters:

rows - The row ordinals to add to the resulting data set.

Returns:

A trimmed data set.

cloneEmpty

public DataSetImpl cloneEmpty()

Description copied from interface: DataSet

Build a data set with the same structure as this but containing no data.

Specified by:

cloneEmpty in interface DataSet

cloneInstance

public DataSetImpl cloneInstance()

Description copied from interface: DataSet

Build a data set with the same structure and content.

Specified by:

cloneInstance in interface DataSet

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

getEstimatedSize

public long getEstimatedSize()

Description copied from interface: DataSet

Return the estimated memory (in bytes) the data set is consuming.

Specified by:

getEstimatedSize in interface DataSet

Returns:

The number of bytes