Java Doc for PropertySet.java in  » Library » Apache-beehive-1.0.2-src » org » apache » beehive » controls » api » properties » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Library » Apache beehive 1.0.2 src » org.apache.beehive.controls.api.properties 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.apache.beehive.controls.api.properties.PropertySet

PropertySet
public @interface PropertySet(Code)
The PropertySet annotation type is used to mark an interface that defines a set of properties that are associated with a Java Control. By convention, property sets are declared as an inner annotation types on the Java Control public interface.

Each member of the annotation type targeted by the PropertySet annotation will define a new property for the control.

Here is a simple example:

 public interface MyControl extends org.apache.beehive.controls.api.Control
 {
 @PropertySet
 public @interface MyProperties
 {
 public String aStringProperty();
 public int anIntProperty();
 ...
 }
 }
 

A Java Control can have multiple property sets associated with it.



Field Summary
 booleanexternalConfig
     The externalConfig member defines whether properties in the set will be settable via external configuration.
 booleanhasSetters
     The hasSetters member defines whether properties in the set will have programmatic setter methods.
 booleanoptional
     The optional member specifies that this property set may optionally be associated with the control.
 Stringprefix
     The prefix member defines a prefix that will be used in all property setter/getter methods for properties in the PropertySet.



Field Detail
externalConfig
boolean externalConfig(Code)
The externalConfig member defines whether properties in the set will be settable via external configuration.



hasSetters
boolean hasSetters(Code)
The hasSetters member defines whether properties in the set will have programmatic setter methods.



optional
boolean optional(Code)
The optional member specifies that this property set may optionally be associated with the control. Because there is no way to represent an 'unset' property value, optional properties will not expose a getter method to clients; a control implementation class can determine whether a property is/is not set, because the PropertySet query APIs on ControlBeanContext will return null if unset. For properties that are not optional, a PropertySet instance with all default values will be returned if unset.
See Also:   org.apache.beehive.controls.api.context.ControlBeanContext.getControlPropertySet
See Also:   org.apache.beehive.controls.api.context.ControlBeanContext.getMethodPropertySet



prefix
String prefix(Code)
The prefix member defines a prefix that will be used in all property setter/getter methods for properties in the PropertySet. It is necessary to specify a prefixes when a control interface has multiple property sets that contain properties with the same name.

The following code shows the basic conventions for setter/getter methods on a Java Control Bean:

 public void set<prefix><propertyName>(<propertyType> value);
 public <propertyType> get<prefix><propertyName>();
 
/code> where prefix is the prefix member value, propertyName is the name of the declared property member, and propertyType is the type associated with the declared property member.





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