weka.core.expressionlanguage.common

Class SimpleVariableDeclarations.VariableInitializer

java.lang.Object

weka.core.expressionlanguage.common.SimpleVariableDeclarations.VariableInitializer

All Implemented Interfaces:

java.io.Serializable

Enclosing class:

SimpleVariableDeclarations

public static class SimpleVariableDeclarations.VariableInitializer
extends java.lang.Object
implements java.io.Serializable

A class to initialize variables that have been declared by a SimpleVariableDeclarations class and used inside a program

Note that not all variables declared can be initialized!
Particularly variables that have been declared but are never used inside a program can't be initialized.

Then variable values that are expensive to compute don't have to be computed if the values are never used inside a program.

Version:

$Revision: 1000 $

Author:

Benjamin Weber ( benweber at student dot ethz dot ch )

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
VariableInitializer()

Method Summary

Modifier and Type	Method and Description
java.util.Set<java.lang.String>	getVariables() Returns the set of variable names that can be initialized
boolean	hasVariable(java.lang.String variable) Returns whether the SimpleVariableDeclarations.VariableInitializer contains the variable
void	setBoolean(java.lang.String name, boolean value) Sets the value of a boolean variable
void	setDouble(java.lang.String name, double value) Sets the value of a double variable
void	setString(java.lang.String name, java.lang.String value) Sets the value of a string variable

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

VariableInitializer

public VariableInitializer()

Method Detail

getVariables

public java.util.Set<java.lang.String> getVariables()

Returns the set of variable names that can be initialized

Returns:

the set of variable names that can be initialized

hasVariable

public boolean hasVariable(java.lang.String variable)

Returns whether the SimpleVariableDeclarations.VariableInitializer contains the variable

Parameters:

variable - name of the variable

Returns:

whether the variable exists

setBoolean

public void setBoolean(java.lang.String name,
                       boolean value)

Sets the value of a boolean variable

Requires that the variable exists and is of boolean type.

Parameters:

name - name of the boolean variable

value - the value the boolean variable will be set to

setDouble

public void setDouble(java.lang.String name,
                      double value)

Sets the value of a double variable

Requires that the variable exists and is of double type.

Parameters:

name - the name of the double variable

value - the value the double variable will be set to

setString

public void setString(java.lang.String name,
                      java.lang.String value)

Sets the value of a string variable

Requires that the variable exists and is of string type.

Parameters:

name - the name of the string variable

value - the value the string variable will be set to