scriptella.spi

Interface ParametersCallback

All Known Subinterfaces:

DriverContext

All Known Implementing Classes:

DynamicContext, DynamicContextDecorator, EtlContext, EtlVariable, HierarchicalParametersCallback, MapParametersCallback, NullParametersCallback, ResultSetAdapter

public interface ParametersCallback

Callback interface to obtain parameter values.

Note: Currently Scriptella has a limitation which does not allow to distinguish between a value of null and an absence of the variable. This will be addressed in future versions.

Version:

1.0

Author:

Fyodor Kupolov

Method Summary

Methods

Modifier and Type	Method and Description
Object	getParameter(String name) Returns the value of parameter specified by name.

Method Detail

getParameter

Object getParameter(String name)

Returns the value of parameter specified by name.

The callback internally delegates a call to parent callbacks if the parameter cannot be found.

Parameters:

name - parameter name. Providers are allowed (but not required) to ignore a case of the name parameter to comply with their internal model. For example JDBC drivers are case-insensitive to column names.

Returns:

parameter value or null if parameter doesn't exist.