platypus
Class Value<A>

java.lang.Object
  platypus.Value<A>

public class Value<A>
extends java.lang.Object

Class that contains a value and the line number of its last modification. Uses generics. Note: because of the use of generics, getValue() returns a *string*. This should be converted to the right numeric type through the usual Java library methods.

Author:

alb

Field Summary

private int	lineNumber the input line # at which value was set
private A	value the actual value (of unknown type)

Constructor Summary

Value(A initialValue)

Value(A val, int line)

Method Summary

java.lang.String	dump() Creates a partial string containing the dump information for the value.
int	getLineNumber() Returns an integer containing the line number of when the value was last modified
java.lang.String	getValue() In a parameterized class, this returns an Object even if declared as A getValue(), so instead return a string and convert it at point of use via Float.valueOf(), Integer.valueOf(), Boolean.valueOf, etc.
A	setValue(A newValue) Setter for value (but returns set value object as a convenience.

Methods inherited from class java.lang.Object

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

Field Detail

value

private A value

the actual value (of unknown type)

lineNumber

private int lineNumber

the input line # at which value was set

Constructor Detail

Value

public Value(A initialValue)

Value

public Value(A val,
             int line)

Method Detail

getValue

public java.lang.String getValue()

In a parameterized class, this returns an Object even if declared as A getValue(), so instead return a string and convert it at point of use via Float.valueOf(), Integer.valueOf(), Boolean.valueOf, etc.

Returns:

value as a String

getLineNumber

public int getLineNumber()

Returns an integer containing the line number of when the value was last modified

Returns:

the line number

setValue

public A setValue(A newValue)

Setter for value (but returns set value object as a convenience. Note: despite the use of a generic for a return value, the returned item is of class Object

Parameters:

newValue - the value to set value to.

Returns:

an Object equal to the newValue.

dump

public java.lang.String dump()

Creates a partial string containing the dump information for the value.

Returns:

a string containing the line number in parens followed by the value.