org.eigenbase.util.property

Class PersistentStringProperty

java.lang.Object

org.eigenbase.util.property.Property

org.eigenbase.util.property.StringProperty

org.eigenbase.util.property.PersistentStringProperty

public class PersistentStringProperty
extends StringProperty

Definition and accessor for a string property that is capable of storing itself in a .properties file.

Since:

December 3, 2004

Version:

$Id$

Author:

Stephan Zuercher

Field Summary

Fields inherited from class org.eigenbase.util.property.Property

properties

Constructor Summary

Constructors

Constructor and Description
PersistentStringProperty(Properties properties, String path, String defaultValue, StringProperty propertyFileLocation) Creates a persistent string property.

Method Summary

Modifier and Type	Method and Description
String	set(String value) Sets the value of this property.

Methods inherited from class org.eigenbase.util.property.StringProperty

get, get, get

Methods inherited from class org.eigenbase.util.property.Property

addTrigger, booleanValue, getDefaultValue, getInternal, getPath, getString, isSet, onChange, removeTrigger, setString, stringValue, toBoolean

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistentStringProperty

public PersistentStringProperty(Properties properties,
                                String path,
                                String defaultValue,
                                StringProperty propertyFileLocation)

Creates a persistent string property.

Parameters:

properties - Properties object which holds values for this property.

path - Name by which this property is serialized to a properties file, for example "com.acme.trace.Verbosity".

defaultValue - Default value, null if there is no default.

propertyFileLocation - Location of the property file where this property's value should be persisted.

Method Detail

set

public String set(String value)

Sets the value of this property.

This method is synchronized to prevent multiple threads from attempting to initialize the property storage (storage) simultaneously.

Overrides:

set in class StringProperty

Returns:

The previous value, or the default value if not set.