Package de.aristaflow.adept2.model.common

Interface MemoryResultSet

All Superinterfaces:

AutoCloseable, Closeable, Serializable

All Known Implementing Classes:

MemoryResultSetImpl, WindowedMemoryResultSet

public interface MemoryResultSet
extends Serializable, Closeable

A MemoryResultSet resembles a ResultSet in a very simple way. It has columns and rows with values; columns have a label and a type. The values are provided per row and are of the Java equivalent of the corresponding ProcessConstants.AdeptDataType.
It is mainly used for an multiplexing event source that provides each registered sharing event source a subset of the complete result set.

Note that unlike a ResultSet, a MemoryResultSet is zero-based, that is, columns and rows start with 0!

Field Summary

Fields

Modifier and Type	Field	Description
static long	serialVersionUID	Generated ID for serialisation.

Method Summary

Modifier and Type	Method	Description
int	getColumnCount()	Gets the amount of columns of this memory result set.
String	getColumnLabel(int column)	Gets the label for the designated column.
ProcessConstants.AdeptDataType	getColumnType(int column)	Gets the data type for the designated column.
int	getRowCount()	Gets the amount of rows of this memory result set.
Serializable[]	getValues(int row)	Gets the values for the designated rows.

Methods inherited from interface java.io.Closeable

close

Field Detail

serialVersionUID

static final long serialVersionUID

Generated ID for serialisation.

See Also:

Constant Field Values

Method Detail

getColumnCount

int getColumnCount()

Gets the amount of columns of this memory result set.

Returns:

The amount of columns of this memory result set.

getRowCount

int getRowCount()

Gets the amount of rows of this memory result set.

Returns:

The amount of rows of this memory result set.

getColumnLabel

String getColumnLabel(int column)

Gets the label for the designated column. The column has to be >= 0 and <getColumnCount().

Parameters:

column - The column for which to get the label.

Returns:

The label of the designated column.

getColumnType

ProcessConstants.AdeptDataType getColumnType(int column)

Gets the data type for the designated column. The column has to be >= 0 and <getColumnCount().

Parameters:

column - The column for which to get the data type.

Returns:

The data type of the designated column.

getValues

Serializable[] getValues(int row)

Gets the values for the designated rows. The row has to be >= 0 and < getRowCount(). The values in the array are of the Java-type corresponding to the ProcessConstants.AdeptDataType of the corresponding column. null represents a usual null.

Parameters:

row - The row for which to get the values.

Returns:

The values for the designated row.
The values will be coupled to this MemoryResultSet, so do not close them; clone them if required longer than this MemoryResultSet.