com.sdm.quasar.client.core.data.structure
Interface ComputationValueAccess

public interface ComputationValueAccess

This is a callback interface for the implementations of Computation.

Offers restricted access to internal node organization of the DataManager. for a Computation.

Version:

1.0

Author:

Thomas Wolf, sd&m AG, Bernd Olleck, sd&m AG

Method Summary

java.util.Set	getIndexSet(int indexOfSource, Context context) Returns a set of all index values of the source node with the given index by applying the given context.
int	getSourceCount()
java.lang.Object	getSourceValue(int indexOfSource, Context context) Returns the value of the source node with the given index.
void	setSourceValue(int indexOfSource, Context context, java.lang.Object newValue) Sets the (indexed) value of the source node with the given index by applying the given context

Method Detail

getSourceValue

public java.lang.Object getSourceValue(int indexOfSource,
                                       Context context)

Returns the value of the source node with the given index.

Parameters:

indexOfSource - the index of the source node in the order defined by the Node.getSourceNodeKeys()

context - the context to access the source value

Returns:

the value of the source node.

getIndexSet

public java.util.Set getIndexSet(int indexOfSource,
                                 Context context)

Returns a set of all index values of the source node with the given index by applying the given context. The method returns null for not indexed nodes.

Parameters:

indexOfSource - the index of the source node in the order defined by the Node.getSourceNodeKeys()

context - the context to access the source value

Returns:

a set of all index values of the source node or null

setSourceValue

public void setSourceValue(int indexOfSource,
                           Context context,
                           java.lang.Object newValue)

Sets the (indexed) value of the source node with the given index by applying the given context

Parameters:

indexOfSource - the index of the source node in the order defined by the Node.getSourceNodeKeys()

context - the context to access the source value

newValue - the value to be set

getSourceCount

public int getSourceCount()

Returns:

the number of source nodes