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Java Source Code / Java Documentation » 6.0 JDK Core » beans » java.beans

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

java.beans .FeatureDescriptor

All known Subclasses:   java.beans .EventSetDescriptor,  java.beans .BeanDescriptor,  java.beans .ParameterDescriptor,  java.beans .PropertyDescriptor,  java.beans .MethodDescriptor,
FeatureDescriptor
public class FeatureDescriptor (Code)
The FeatureDescriptor class is the common baseclass for PropertyDescriptor, EventSetDescriptor, and MethodDescriptor, etc.
It supports some common information that can be set and retrieved for any of the introspection descriptors.
In addition it provides an extension mechanism so that arbitrary attribute/value pairs can be associated with a design feature.

Constructor Summary
public FeatureDescriptor()
     Constructs a FeatureDescriptor.
FeatureDescriptor(FeatureDescriptor x, FeatureDescriptor y)
     Package-private constructor, Merge information from two FeatureDescriptors.
FeatureDescriptor(FeatureDescriptor old)


Method Summary
public java.util.Enumeration<String> attributeNames()
     Gets an enumeration of the locale-independent names of this feature.
static Reference createReference(Object obj, boolean soft)
     Create a Reference wrapper for the object.
static Reference createReference(Object obj)

Class getClass0()

public String getDisplayName()
     Gets the localized display name of this feature.
public String getName()
     Gets the programmatic name of this feature.
static Object getObject(Reference ref)
     Returns an object from a Reference wrapper.
static Class[] getParameterTypes(Class base, Method method)
     Resolves the parameter types of the method.
static Class getReturnType(Class base, Method method)
     Resolves the return type of the method.
public String getShortDescription()
     Gets the short description of this feature. A localized short description associated with this property/method/event.
static Reference<T> getSoftReference(T object)
     Creates a new soft reference that refers to the given object.
public Object getValue(String attributeName)
     Retrieve a named attribute with this feature.
Parameters:
  attributeName - The locale-independent name of the attribute The value of the attribute.
static Reference<T> getWeakReference(T object)
     Creates a new weak reference that refers to the given object.
public boolean isExpert()
     The "expert" flag is used to distinguish between those features that are intended for expert users from those that are intended for normal users.
public boolean isHidden()
     The "hidden" flag is used to identify features that are intended only for tool use, and which should not be exposed to humans.
public boolean isPreferred()
     The "preferred" flag is used to identify features that are particularly important for presenting to humans.
void setClass0(Class cls)

public void setDisplayName(String displayName)
     Sets the localized display name of this feature.
public void setExpert(boolean expert)
     The "expert" flag is used to distinguish between features that are intended for expert users from those that are intended for normal users.
public void setHidden(boolean hidden)
     The "hidden" flag is used to identify features that are intended only for tool use, and which should not be exposed to humans.
public void setName(String name)
     Sets the programmatic name of this feature.
public void setPreferred(boolean preferred)
     The "preferred" flag is used to identify features that are particularly important for presenting to humans.
public void setShortDescription(String text)
     You can associate a short descriptive string with a feature.
public void setValue(String attributeName, Object value)
     Associate a named attribute with this feature.

Constructor Detail
FeatureDescriptor
public FeatureDescriptor()(Code)
Constructs a FeatureDescriptor.

FeatureDescriptor
FeatureDescriptor(FeatureDescriptor x, FeatureDescriptor y)(Code)
Package-private constructor, Merge information from two FeatureDescriptors. The merged hidden and expert flags are formed by or-ing the values. In the event of other conflicts, the second argument (y) is given priority over the first argument (x).
Parameters:
  x - The first (lower priority) MethodDescriptor
Parameters:
  y - The second (higher priority) MethodDescriptor

FeatureDescriptor
FeatureDescriptor(FeatureDescriptor old)(Code)

Method Detail
attributeNames
public java.util.Enumeration<String> attributeNames()(Code)
Gets an enumeration of the locale-independent names of this feature. An enumeration of the locale-independent names of any attributes that have been registered with setValue.

createReference
static Reference createReference(Object obj, boolean soft)(Code)
Create a Reference wrapper for the object.
Parameters:
  obj - object that will be wrapped
Parameters:
  soft - true if a SoftReference should be created; otherwise Soft a Reference or null if obj is null.

createReference
static Reference createReference(Object obj)(Code)

getClass0
Class getClass0()(Code)

getDisplayName
public String getDisplayName()(Code)
Gets the localized display name of this feature. The localized display name for the property/method/event.This defaults to the same as its programmatic name from getName.

getName
public String getName()(Code)
Gets the programmatic name of this feature. The programmatic name of the property/method/event

getObject
static Object getObject(Reference ref)(Code)
Returns an object from a Reference wrapper. the Object in a wrapper or null.

getParameterTypes
static Class[] getParameterTypes(Class base, Method method)(Code)
Resolves the parameter types of the method.
Parameters:
  base - the class that contains the method in the hierarchy
Parameters:
  method - the object that represents the method an array of classes identifying the parameter types of the method
See Also:   Method.getGenericParameterTypes
See Also:   Method.getParameterTypes

getReturnType
static Class getReturnType(Class base, Method method)(Code)
Resolves the return type of the method.
Parameters:
  base - the class that contains the method in the hierarchy
Parameters:
  method - the object that represents the method a class identifying the return type of the method
See Also:   Method.getGenericReturnType
See Also:   Method.getReturnType

getShortDescription
public String getShortDescription()(Code)
Gets the short description of this feature. A localized short description associated with this property/method/event. This defaults to be the display name.

getSoftReference
static Reference<T> getSoftReference(T object)(Code)
Creates a new soft reference that refers to the given object. a new soft reference or null if object is null
See Also:   SoftReference

getValue
public Object getValue(String attributeName)(Code)
Retrieve a named attribute with this feature.
Parameters:
  attributeName - The locale-independent name of the attribute The value of the attribute. May be null ifthe attribute is unknown.

getWeakReference
static Reference<T> getWeakReference(T object)(Code)
Creates a new weak reference that refers to the given object. a new weak reference or null if object is null
See Also:   WeakReference

isExpert
public boolean isExpert()(Code)
The "expert" flag is used to distinguish between those features that are intended for expert users from those that are intended for normal users. True if this feature is intended for use by experts only.

isHidden
public boolean isHidden()(Code)
The "hidden" flag is used to identify features that are intended only for tool use, and which should not be exposed to humans. True if this feature should be hidden from human users.

isPreferred
public boolean isPreferred()(Code)
The "preferred" flag is used to identify features that are particularly important for presenting to humans. True if this feature should be preferentially shown to human users.

setClass0
void setClass0(Class cls)(Code)

setDisplayName
public void setDisplayName(String displayName)(Code)
Sets the localized display name of this feature.
Parameters:
  displayName - The localized display name for theproperty/method/event.

setExpert
public void setExpert(boolean expert)(Code)
The "expert" flag is used to distinguish between features that are intended for expert users from those that are intended for normal users.
Parameters:
  expert - True if this feature is intended for use by experts only.

setHidden
public void setHidden(boolean hidden)(Code)
The "hidden" flag is used to identify features that are intended only for tool use, and which should not be exposed to humans.
Parameters:
  hidden - True if this feature should be hidden from human users.

setName
public void setName(String name)(Code)
Sets the programmatic name of this feature.
Parameters:
  name - The programmatic name of the property/method/event

setPreferred
public void setPreferred(boolean preferred)(Code)
The "preferred" flag is used to identify features that are particularly important for presenting to humans.
Parameters:
  preferred - True if this feature should be preferentially shownto human users.

setShortDescription
public void setShortDescription(String text)(Code)
You can associate a short descriptive string with a feature. Normally these descriptive strings should be less than about 40 characters.
Parameters:
  text - A (localized) short description to be associated withthis property/method/event.

setValue
public void setValue(String attributeName, Object value)(Code)
Associate a named attribute with this feature.
Parameters:
  attributeName - The locale-independent name of the attribute
Parameters:
  value - The value.

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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