Package org.yamcs.yarch

Class Tuple

java.lang.Object

org.yamcs.yarch.Tuple

public class Tuple
extends Object

Contains the tuple value (as an array of Columns) together with a pointer to its definition

Constructor Summary

Constructors

Constructor	Description
Tuple()	Create a new tuple with no column.
Tuple(TupleDefinition tdef)	Create a tuple with all the column values set to null.
Tuple(TupleDefinition definition, Object[] columns)
Tuple(TupleDefinition definition, List<Object> columns)

Method Summary

Modifier and Type	Method	Description
void	addColumn(String colName, boolean colValue)	Add a BOOLEAN column
void	addColumn(String colName, int colValue)	Add a INT column
void	addColumn(String colName, long colValue)	Add a LONG column
void	addColumn(String colName, String colValue)	Add a STRING column
void	addColumn(String colName, DataType type, Object colValue)
void	addEnumColumn(String colName, String colValue)	Add an ENUM column
void	addTimestampColumn(String colName, long colValue)	Add a TIMESTAMP column
boolean	getBooleanColumn(String colName)	Get the value of column as boolean.
byte	getByteColumn(String colName)	Get the value of column as byte.
Object	getColumn(int i)
<T> T	getColumn(String colName)	Returns the value of the column with the given name or null if there is no value
ColumnDefinition	getColumnDefinition(int i)
ColumnDefinition	getColumnDefinition(String colName)
int	getColumnIndex(String colName)	returns the index of the column with name or -1 if there is no such column
List<?>	getColumns()
TupleDefinition	getDefinition()
double	getDoubleColumn(String colName)	Get the value of column as double.
int	getIntColumn(String colName)	Get the value of column as int.
long	getLongColumn(String colName)	Get the value of column as long.
short	getShortColumn(String colName)	Get the value of column as short.
long	getTimestampColumn(String colName)
boolean	hasColumn(String colName)
<T> T	removeColumn(String colName)
void	setColumn(int index, Object value)
void	setColumn(String colName, Object value)
void	setColumns(List<Object> cols)
void	setDefinition(TupleDefinition definition)
int	size()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

Tuple

public Tuple()

Create a new tuple with no column.

Can be used by the addColumn(String, DataType, Object) methods

Tuple

public Tuple(TupleDefinition definition,
 List<Object> columns)

Tuple

public Tuple(TupleDefinition definition,
 Object[] columns)

Tuple

public Tuple(TupleDefinition tdef)

Create a tuple with all the column values set to null.

Parameters:

tdef -

Method Details

setDefinition

public void setDefinition(TupleDefinition definition)

getDefinition

public TupleDefinition getDefinition()

getColumns

public List<?> getColumns()

setColumns

public void setColumns(List<Object> cols)

setColumn

public void setColumn(int index,
 Object value)

setColumn

public void setColumn(String colName,
 Object value)

getColumnIndex

public int getColumnIndex(String colName)

returns the index of the column with name or -1 if there is no such column

Parameters:

colName - - the name of the column

Returns:

the index of the column with name or -1 if there is no such column

getColumn

public <T> T getColumn(String colName)

Returns the value of the column with the given name or null if there is no value

getLongColumn

public long getLongColumn(String colName)

Get the value of column as long.

Throws exception if the column does not exist or is of different type

Parameters:

colName -

Returns:

getTimestampColumn

public long getTimestampColumn(String colName)

getBooleanColumn

public boolean getBooleanColumn(String colName)

Get the value of column as boolean.

Throws exception if the column does not exist or is of different type

Parameters:

colName -

Returns:

getByteColumn

public byte getByteColumn(String colName)

Get the value of column as byte.

Throws exception if the column does not exist or is of different type

Parameters:

colName -

Returns:

getShortColumn

public short getShortColumn(String colName)

Get the value of column as short.

Throws exception if the column does not exist or is of different type

Parameters:

colName -

Returns:

getIntColumn

public int getIntColumn(String colName)

Get the value of column as int.

Throws exception if the column does not exist or is of different type

Parameters:

colName -

Returns:

getDoubleColumn

public double getDoubleColumn(String colName)

Get the value of column as double.

Throws exception if the column does not exist or is of different type

Parameters:

colName -

Returns:

getColumnDefinition

public ColumnDefinition getColumnDefinition(String colName)

getColumnDefinition

public ColumnDefinition getColumnDefinition(int i)

hasColumn

public boolean hasColumn(String colName)

getColumn

public Object getColumn(int i)

addTimestampColumn

public void addTimestampColumn(String colName,
 long colValue)

Add a TIMESTAMP column

Parameters:

colName -

colValue -

addColumn

public void addColumn(String colName,
 int colValue)

Add a INT column

Parameters:

colName -

colValue -

addColumn

public void addColumn(String colName,
 boolean colValue)

Add a BOOLEAN column

Parameters:

colName -

colValue -

addColumn

public void addColumn(String colName,
 long colValue)

Add a LONG column

Parameters:

colName -

colValue -

addColumn

public void addColumn(String colName,
 String colValue)

Add a STRING column

Parameters:

colName -

colValue -

addEnumColumn

public void addEnumColumn(String colName,
 String colValue)

Add an ENUM column

Parameters:

colName -

colValue -

addColumn

public void addColumn(String colName,
 DataType type,
 Object colValue)

removeColumn

public <T> T removeColumn(String colName)

size

public int size()

Returns:

return the number of columns

toString

public String toString()

Overrides:

toString in class Object