org.knime.base.node.io.database
Interface DBVariableSupportNodeModel

All Known Implementing Classes:

DatabaseLoopingNodeModel, DBQueryNodeModel2, DBReaderConnectionNodeModel, DBReaderNodeModel

public interface DBVariableSupportNodeModel

Interface for all database model implementations. Currently only the methods for accessing flow variables are implemented.

Author:

Thomas Gabriel, KNIME.com, Zurich, Switzerland

Nested Class Summary

static class

DBVariableSupportNodeModel.Resolver Resolver providing methods to parse queries and wrap certain variables.

Method Summary

double	delegatePeekFlowVariableDouble(String name) Delegate access to flow variable of type DOUBLE.
int	delegatePeekFlowVariableInt(String name) Delegate access to flow variable of type INTEGER.
String	delegatePeekFlowVariableString(String name) Delegate access to flow variable of type STRING.

Method Detail

delegatePeekFlowVariableInt

int delegatePeekFlowVariableInt(String name)

Delegate access to flow variable of type INTEGER.

Parameters:

name - identifier for flow variable

Returns:

int value

delegatePeekFlowVariableDouble

double delegatePeekFlowVariableDouble(String name)

Delegate access to flow variable of type DOUBLE.

Parameters:

name - identifier for flow variable

Returns:

double value

delegatePeekFlowVariableString

String delegatePeekFlowVariableString(String name)

Delegate access to flow variable of type STRING.

Parameters:

name - identifier for flow variable

Returns:

String value