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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 .PropertyEditorManager

PropertyEditorManager

public class PropertyEditorManager (Code)

The PropertyEditorManager can be used to locate a property editor for any given type name. This property editor must support the java.beans.PropertyEditor interface for editing a given object.

The PropertyEditorManager uses three techniques for locating an editor for a given type. First, it provides a registerEditor method to allow an editor to be specifically registered for a given type. Second it tries to locate a suitable class by adding "Editor" to the full qualified classname of the given type (e.g. "foo.bah.FozEditor"). Finally it takes the simple classname (without the package name) adds "Editor" to it and looks in a search-path of packages for a matching class.

So for an input class foo.bah.Fred, the PropertyEditorManager would first look in its tables to see if an editor had been registered for foo.bah.Fred and if so use that. Then it will look for a foo.bah.FredEditor class. Then it will look for (say) standardEditorsPackage.FredEditor class.

Default PropertyEditors will be provided for the Java primitive types "boolean", "byte", "short", "int", "long", "float", and "double"; and for the classes java.lang.String. java.awt.Color, and java.awt.Font.

Method Summary
public static synchronized PropertyEditor	findEditor(Class targetType) Locate a value editor for a given target type. Parameters: targetType - The Class object for the type to be edited An editor object for the given target class.
public static synchronized String[]	getEditorSearchPath() Gets the package names that will be searched for property editors. The array of package names that will be searched inorder to find property editors. The default value for this array is implementation-dependent,e.g.
public static void	registerEditor(Class targetType, Class editorClass) Register an editor class to be used to edit values of a given target class. First, if there is a security manager, its `checkPropertiesAccess` method is called.
public static synchronized void	setEditorSearchPath(String path) Change the list of package names that will be used for finding property editors. First, if there is a security manager, its `checkPropertiesAccess` method is called.

Method Detail

findEditor
public static synchronized PropertyEditor findEditor(Class targetType)(Code)
	Locate a value editor for a given target type. Parameters: targetType - The Class object for the type to be edited An editor object for the given target class. The result is null if no suitable editor can be found.

getEditorSearchPath
public static synchronized String[] getEditorSearchPath()(Code)
	Gets the package names that will be searched for property editors. The array of package names that will be searched inorder to find property editors. The default value for this array is implementation-dependent,e.g. Sun implementation initially sets to {"sun.beans.editors"}.

registerEditor
public static void registerEditor(Class targetType, Class editorClass)(Code)
	Register an editor class to be used to edit values of a given target class. First, if there is a security manager, its `checkPropertiesAccess` method is called. This could result in a SecurityException. Parameters: targetType - the Class object of the type to be edited Parameters: editorClass - the Class object of the editor class. Ifthis is null, then any existing definition will be removed. exception: SecurityException - if a security manager exists and its `checkPropertiesAccess` method doesn't allow settingof system properties. See Also: SecurityManager.checkPropertiesAccess

setEditorSearchPath
public static synchronized void setEditorSearchPath(String path)(Code)
	Change the list of package names that will be used for finding property editors. First, if there is a security manager, its `checkPropertiesAccess` method is called. This could result in a SecurityException. Parameters: path - Array of package names. exception: SecurityException - if a security manager exists and its `checkPropertiesAccess` method doesn't allow settingof system properties. See Also: SecurityManager.checkPropertiesAccess

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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