Interface UIDefaults.LazyValue
- All Known Implementing Classes:
- UIDefaults.LazyInputMap,- UIDefaults.ProxyLazyValue
- Enclosing class:
- UIDefaults
public static interface UIDefaults.LazyValue
This class enables one to store an entry in the defaults
 table that isn't constructed until the first time it's
 looked up with one of the 
getXXX(key) methods.
 Lazy values are useful for defaults that are expensive
 to construct or are seldom retrieved.  The first time
 a LazyValue is retrieved its "real value" is computed
 by calling LazyValue.createValue() and the real
 value is used to replace the LazyValue in the
 UIDefaults
 table.  Subsequent lookups for the same key return
 the real value.  Here's an example of a LazyValue
 that constructs a Border:
 
  Object borderLazyValue = new UIDefaults.LazyValue() {
      public Object createValue(UIDefaults table) {
          return new BorderFactory.createLoweredBevelBorder();
      }
  };
  uiDefaultsTable.put("MyBorder", borderLazyValue);
 - Since:
- 1.2
- See Also:
- 
Method SummaryModifier and TypeMethodDescriptioncreateValue(UIDefaults table) Creates the actual value retrieved from theUIDefaultstable.
- 
Method Details- 
createValueCreates the actual value retrieved from theUIDefaultstable. When an object that implements this interface is retrieved from the table, this method is used to create the real value, which is then stored in the table and returned to the calling method.- Parameters:
- table- a- UIDefaultstable
- Returns:
- the created Object
 
 
-