javax.swing
Class UIDefaults.ProxyLazyValue
- java.lang.Object
-
- javax.swing.UIDefaults.ProxyLazyValue
-
- All Implemented Interfaces:
- UIDefaults.LazyValue
- Enclosing class:
- UIDefaults
public static class UIDefaults.ProxyLazyValue extends Object implements UIDefaults.LazyValue
This class provides an implementation ofLazyValuewhich can be used to delay loading of the Class for the instance to be created. It also avoids creation of an anonymous inner class for theLazyValuesubclass. Both of these improve performance at the time that a a Look and Feel is loaded, at the cost of a slight performance reduction the first timecreateValueis called (since Reflection APIs are used).- Since:
- 1.3
-
-
Constructor Summary
Constructors Constructor and Description ProxyLazyValue(String c)Creates aLazyValuewhich will construct an instance when asked.ProxyLazyValue(String c, Object[] o)Creates aLazyValuewhich will construct an instance when asked.ProxyLazyValue(String c, String m)Creates aLazyValuewhich will construct an instance when asked.ProxyLazyValue(String c, String m, Object[] o)Creates aLazyValuewhich will construct an instance when asked.
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method and Description ObjectcreateValue(UIDefaults table)Creates the value retrieved from theUIDefaultstable.
-
-
-
Constructor Detail
ProxyLazyValue
public ProxyLazyValue(String c)
Creates aLazyValuewhich will construct an instance when asked.- Parameters:
-
c- aStringspecifying the classname of the instance to be created on demand
ProxyLazyValue
public ProxyLazyValue(String c, String m)
Creates aLazyValuewhich will construct an instance when asked.- Parameters:
-
c- aStringspecifying the classname of the class containing a static method to be called for instance creation -
m- aStringspecifying the static method to be called on class c
ProxyLazyValue
public ProxyLazyValue(String c, Object[] o)
Creates aLazyValuewhich will construct an instance when asked.- Parameters:
-
c- aStringspecifying the classname of the instance to be created on demand -
o- an array ofObjectsto be passed as paramaters to the constructor in class c
ProxyLazyValue
public ProxyLazyValue(String c, String m, Object[] o)
Creates aLazyValuewhich will construct an instance when asked.- Parameters:
-
c- aStringspecifying the classname of the class containing a static method to be called for instance creation. -
m- aStringspecifying the static method to be called on class c -
o- an array ofObjectsto be passed as paramaters to the static method in class c
-
Method Detail
createValue
public Object createValue(UIDefaults table)
Creates the value retrieved from theUIDefaultstable. The object is created each time it is accessed.- Specified by:
-
createValuein interfaceUIDefaults.LazyValue - Parameters:
-
table- aUIDefaultstable - Returns:
-
the created
Object
-
Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2022, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.
