org.oddjob.arooa.standard
Class StandardPropertyManager

java.lang.Object
  org.oddjob.arooa.standard.StandardPropertyManager

All Implemented Interfaces:

PropertyLookup, PropertyManager

public class StandardPropertyManager
extends Object
implements PropertyManager

Standard implementation of a PropertyManager.

Author:

rob

Constructor Summary

StandardPropertyManager()
Default Constructor.

StandardPropertyManager(Properties properties)
Constructor with some properties.

StandardPropertyManager(PropertyManager parent)
Constructor the defers first to a parent.

StandardPropertyManager(PropertyManager parent, Properties properties)
Constructor that defers first to parent, then to given properties.

Method Summary

void	addPropertyLookup(PropertyLookup propertyLookup) Add a lookup.
void	addPropertyOverride(PropertyLookup propertyLookup) Add a property overrides.
String	lookup(String propertyName) Return the value of a property, or null if it doesn't exist.
void	removePropertyLookup(PropertyLookup propertyLookup) Remove a lookup.

Methods inherited from class java.lang.Object

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

Constructor Detail

StandardPropertyManager

public StandardPropertyManager()

Default Constructor. Initially only system properties are available.

StandardPropertyManager

public StandardPropertyManager(Properties properties)

Constructor with some properties. System properties will override given properties.

Parameters:

properties -

StandardPropertyManager

public StandardPropertyManager(PropertyManager parent)

Constructor the defers first to a parent. No system properties will be returned unless by the parent.

Parameters:

parent -

StandardPropertyManager

public StandardPropertyManager(PropertyManager parent,
                               Properties properties)

Constructor that defers first to parent, then to given properties.

Parameters:

parent -

properties -

Method Detail

addPropertyLookup

public void addPropertyLookup(PropertyLookup propertyLookup)

Description copied from interface: PropertyManager

Add a lookup. Lookups are used in the order they are added.

Specified by:

addPropertyLookup in interface PropertyManager

addPropertyOverride

public void addPropertyOverride(PropertyLookup propertyLookup)

Description copied from interface: PropertyManager

Add a property overrides. Overrides are used first.

Specified by:

addPropertyOverride in interface PropertyManager

removePropertyLookup

public void removePropertyLookup(PropertyLookup propertyLookup)

Description copied from interface: PropertyManager

Remove a lookup.

Specified by:

removePropertyLookup in interface PropertyManager

lookup

public String lookup(String propertyName)

Description copied from interface: PropertyLookup

Return the value of a property, or null if it doesn't exist.

Specified by:

lookup in interface PropertyLookup

Parameters:

propertyName - The name of the property.

Returns:

The value or null.