de.unidu.is.rs
Class CostParameters

java.lang.Object
  java.util.AbstractMap
      java.util.HashMap
          de.unidu.is.rs.CostParameters

All Implemented Interfaces:

java.lang.Cloneable, java.util.Map, java.io.Serializable

public class CostParameters

extends java.util.HashMap

Cost parameters of a query.

Since:

2001-04-20

Version:

$Revision: 1.6 $, $Date: 2005/02/28 22:27:56 $

Author:

Henrik Nottelmann

See Also:

Serialized Form

Constructor Summary

CostParameters()

Method Summary

int	getInt(java.lang.String name) Returns a value of a parameter as an integer.
double	getParameter(java.lang.String name) Returns a value of a parameter.
boolean	hasParameter(java.lang.String name) Tests if there is a parameter with the specified name
java.util.Iterator	parameterNames() Returns an iterator over all parameter names.
void	setParameter(java.lang.String name, double value) Sets a parameter.
java.lang.String	toString() Returns a text representation of the current object.

Methods inherited from class java.util.HashMap

clear, clone, containsKey, containsValue, entrySet, get, isEmpty, keySet, put, putAll, remove, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Detail

CostParameters

public CostParameters()

Method Detail

getParameter

public double getParameter(java.lang.String name)

Returns a value of a parameter.

Parameters:

name - name of the parameter

Returns:

value of the parameter or 0, if the parameter does not exist

getInt

public int getInt(java.lang.String name)

Returns a value of a parameter as an integer.

Parameters:

name - name of the parameter

Returns:

value of the parameter or 0, if the parameter does not exist

hasParameter

public boolean hasParameter(java.lang.String name)

Tests if there is a parameter with the specified name

Returns:

true if there is a parameter with the specified name

setParameter

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

Sets a parameter.

Parameters:

name - name of the parameter

value - value of the parameter

toString

public java.lang.String toString()

Returns a text representation of the current object.

Returns:

text representation of the current object

parameterNames

public java.util.Iterator parameterNames()

Returns an iterator over all parameter names.

Returns:

iterator over all parameter names