Package scriptella.spi

Interface ParametersCallback

All Known Subinterfaces:
DriverContext
All Known Implementing Classes:
BindingsParametersCallback, CsvQuery, DynamicContext, DynamicContextDecorator, EtlContext, EtlVariable, HierarchicalParametersCallback, JaninoQuery, MapParametersCallback, NashornBindingsParametersCallback, NullParametersCallback, ParametersCallbackMap, ResultSetAdapter, SearchFilterQuery, XPathQueryExecutor
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

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

  • Method Details

    • 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.