org.epics.pvmanager.data
Interface VTable

All Superinterfaces:

VType

public interface VTable
extends VType

A table. Tables are collections of columns, each of which is composed of a String representing the name of the column and an array of a particular type (all elements of the same column must be of the same type).

Author:

carcassi

getColumnCount

int getColumnCount()

The number of columns in the table.

Returns:

the number of columns

getRowCount

int getRowCount()

The number of rows in the table.

Currently, is not clear whether all columns actually have the same number of rows, that is if all arrays have the same length. In the case of variable row, this will return the maximum row count, that is the length of the longest array/column.

Returns:

the number of rows

getColumnType

java.lang.Class<?> getColumnType(int column)

The type of the elements in the column. The column array will be an array of the given type. For primitive types, this function will return the wrapper class, while getColumnArray(int) will return an array of primitives.

Parameters:

column - the column index

Returns:

the type of this column

getColumnName

java.lang.String getColumnName(int column)

The name of the given column.

Parameters:

column - the column index

Returns:

the name of the column

getColumnArray

java.lang.Object getColumnArray(int column)

The data for the given column. You should cast this object to an array of the appropriate type.

Parameters:

column - the column index

Returns:

the data of the column