kddml.
Core.
QueryElement.
Expression.
BaseTerm
kddml.Core.QueryElement.Expression.BaseTerm Class Reference
Inheritance diagram for kddml.Core.QueryElement.Expression.BaseTerm:
List of all members.
|
Public Member Functions |
String | evalExpr (Instance instance) throws KDDMLCoreException |
Protected Member Functions |
| BaseTerm (String value) |
Detailed Description
The class BaseTerm is used to provide numeric/string constants or table attribute names in an expressione. With the special symbol "@" in the value attribute we denote an input table column.
Title: KDDML
Description: Knowledge Discovery in Database Environment
Copyright: Copyright (c) 2003-2005
Company: Universita' di Pisa - Dipartimento di Informatica
- Author:
- Andrea Romei (romei@di.unipi.it)
Sandra Zimei
- Version:
- 2.0.16
Constructor & Destructor Documentation
kddml.Core.QueryElement.Expression.BaseTerm.BaseTerm |
( |
String |
value |
) |
[protected] |
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|
Constructor given the expressione value. You can denote an input table column instead of a constant using the special symbol "@" before the attribute name (e.g. ) in the input parameter.
- Parameters:
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| value | String the expression value. If the value starts with the symbol "@", then it denotes an input table column. |
|
Member Function Documentation
String kddml.Core.QueryElement.Expression.BaseTerm.evalExpr |
( |
Instance |
instance |
) |
throws KDDMLCoreException [virtual] |
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Evaluates the expression on input instance. The tupla is defined in weka.core.Instance class.
- Parameters:
-
| instance | Instance the input instance as in weka.core.Instance. |
- Exceptions:
-
- Returns:
- String the expression evaluation as string.
Implements kddml.Core.QueryElement.Expression.Expression. |
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