javax.swing

Class 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 of LazyValue which 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 the LazyValue subclass. 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 time createValue is called (since Reflection APIs are used).
    Since:
    1.3

    • Constructor Detail

      • ProxyLazyValue

        public ProxyLazyValue(String c)
        Creates a LazyValue which will construct an instance when asked.
        Parameters:
        c - a String specifying the classname of the instance to be created on demand

      • ProxyLazyValue

        public ProxyLazyValue(String c,
                      String m)
        Creates a LazyValue which will construct an instance when asked.
        Parameters:
        c - a String specifying the classname of the class containing a static method to be called for instance creation
        m - a String specifying the static method to be called on class c

      • ProxyLazyValue

        public ProxyLazyValue(String c,
                      Object[] o)
        Creates a LazyValue which will construct an instance when asked.
        Parameters:
        c - a String specifying the classname of the instance to be created on demand
        o - an array of Objects to be passed as paramaters to the constructor in class c

      • ProxyLazyValue

        public ProxyLazyValue(String c,
                      String m,
                      Object[] o)
        Creates a LazyValue which will construct an instance when asked.
        Parameters:
        c - a String specifying the classname of the class containing a static method to be called for instance creation.
        m - a String specifying the static method to be called on class c
        o - an array of Objects to be passed as paramaters to the static method in class c

    • Method Detail

      • createValue

        public Object createValue(UIDefaults table)
        Creates the value retrieved from the UIDefaults table. The object is created each time it is accessed.
        Specified by:
        createValue in interface  UIDefaults.LazyValue
        Parameters:
        table - a UIDefaults table
        Returns:
        the created Object