org.jfree.util
Class ExtendedConfigurationWrapper

java.lang.Object
  org.jfree.util.ExtendedConfigurationWrapper

All Implemented Interfaces:

Serializable, Cloneable, Configuration, ExtendedConfiguration

public class ExtendedConfigurationWrapper
extends Object
implements ExtendedConfiguration

A wrapper for the extended configuration interface around a plain configuration.

Author:

Thomas Morgner

See Also:

Serialized Form

Constructor Summary

ExtendedConfigurationWrapper(Configuration parent)
Creates a wrapper around the given configuration.

Method Summary

Object	clone() Returns a clone of this instance.
Iterator	findPropertyKeys(String prefix) Returns all keys with the given prefix.
boolean	getBoolProperty(String name) Returns the boolean value of a given configuration property.
boolean	getBoolProperty(String name, boolean defaultValue) Returns the boolean value of a given configuration property.
Enumeration	getConfigProperties() Returns an enumeration of the configuration properties.
String	getConfigProperty(String key) Returns the configuration property with the specified key.
String	getConfigProperty(String key, String defaultValue) Returns the configuration property with the specified key (or the specified default value if there is no such property).
int	getIntProperty(String name) Returns a given property as int value.
int	getIntProperty(String name, int defaultValue) Returns a given property as int value.
boolean	isPropertySet(String name) Checks, whether a given property is defined.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtendedConfigurationWrapper

public ExtendedConfigurationWrapper(Configuration parent)

Creates a wrapper around the given configuration.

Parameters:

parent - the wrapped up configuration.

Throws:

NullPointerException - if the parent is null.

Method Detail

getBoolProperty

public boolean getBoolProperty(String name)

Returns the boolean value of a given configuration property. The boolean value true is returned, if the contained string is equal to 'true'.

Specified by:

getBoolProperty in interface ExtendedConfiguration

Parameters:

name - the name of the property

Returns:

the boolean value of the property.

getBoolProperty

public boolean getBoolProperty(String name,
                               boolean defaultValue)

Returns the boolean value of a given configuration property. The boolean value true is returned, if the contained string is equal to 'true'. If the property is not set, the default value is returned.

Specified by:

getBoolProperty in interface ExtendedConfiguration

Parameters:

name - the name of the property

defaultValue - the default value to be returned if the property is not set

Returns:

the boolean value of the property.

getIntProperty

public int getIntProperty(String name)

Returns a given property as int value. Zero is returned if the property value is no number or the property is not set.

Specified by:

getIntProperty in interface ExtendedConfiguration

Parameters:

name - the name of the property

Returns:

the parsed number value or zero

getIntProperty

public int getIntProperty(String name,
                          int defaultValue)

Returns a given property as int value. The specified default value is returned if the property value is no number or the property is not set.

Specified by:

getIntProperty in interface ExtendedConfiguration

Parameters:

name - the name of the property

defaultValue - the value to be returned if the property is no integer value

Returns:

the parsed number value or the specified default value

isPropertySet

public boolean isPropertySet(String name)

Checks, whether a given property is defined.

Specified by:

isPropertySet in interface ExtendedConfiguration

Parameters:

name - the name of the property

Returns:

true, if the property is defined, false otherwise.

findPropertyKeys

public Iterator findPropertyKeys(String prefix)

Returns all keys with the given prefix.

Specified by:

findPropertyKeys in interface Configuration

Parameters:

prefix - the prefix

Returns:

the iterator containing all keys with that prefix

getConfigProperty

public String getConfigProperty(String key)

Returns the configuration property with the specified key.

Specified by:

getConfigProperty in interface Configuration

Parameters:

key - the property key.

Returns:

the property value.

getConfigProperty

public String getConfigProperty(String key,
                                String defaultValue)

Returns the configuration property with the specified key (or the specified default value if there is no such property).

If the property is not defined in this configuration, the code will lookup the property in the parent configuration.

Specified by:

getConfigProperty in interface Configuration

Parameters:

key - the property key.

defaultValue - the default value.

Returns:

the property value.

getConfigProperties

public Enumeration getConfigProperties()

Returns an enumeration of the configuration properties.

Specified by:

getConfigProperties in interface Configuration

Returns:

An enumeration.

clone

public Object clone()
             throws CloneNotSupportedException

Returns a clone of this instance.

Specified by:

clone in interface Configuration

Overrides:

clone in class Object

Returns:

A clone.

Throws:

CloneNotSupportedException - if there is a problem cloning.