Java Doc for ReferenceCounter.java in  » IDE-Eclipse » ui-workbench » org » eclipse » ui » internal » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Eclipse » ui workbench » org.eclipse.ui.internal   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.eclipse.ui.internal.ReferenceCounter ReferenceCounter public class ReferenceCounter (Code) A ReferenceCounter is used to reference counting objects. Each object is identified by a unique ID. Together they form an ID - value pair. An object is added to the counter by calling #put(id, object). From this point on additional refs can be made by calling #addRef(id) or #removeRef(id). Inner Class :public class RefRec Constructor Summary public   ReferenceCounter()      Creates a new counter. Method Summary public  int addRef(Object id)      Adds one reference to an object in the counter. Parameters:   id - is a unique ID for the object. public  Object get(Object id)      Returns the object defined by an ID. public  int getRef(Object id)      Parameters:   id - is a unique ID for the object. public  Set keySet()      Returns a complete list of the keys in the counter. public  void put(Object id, Object value)      Adds an object to the counter for counting and gives it an initial ref count of 1. public  int removeRef(Object id)      Removes one reference from an object in the counter. If the ref count drops to 0 the object is removed from the counter completely. Parameters:   id - is a unique ID for the object. public  List values()      Returns a complete list of the values in the counter. Constructor Detail ReferenceCounter public ReferenceCounter()(Code) Creates a new counter. Method Detail addRef public int addRef(Object id)(Code) Adds one reference to an object in the counter. Parameters:   id - is a unique ID for the object. the new ref count get public Object get(Object id)(Code) Returns the object defined by an ID. If the ID is not found null is returned. the object or null getRef public int getRef(Object id)(Code) Parameters:   id - is a unique ID for the object. the current ref count keySet public Set keySet()(Code) Returns a complete list of the keys in the counter. a Set containing the ID for each. put public void put(Object id, Object value)(Code) Adds an object to the counter for counting and gives it an initial ref count of 1. Parameters:   id - is a unique ID for the object. Parameters:   value - is the object itself. removeRef public int removeRef(Object id)(Code) Removes one reference from an object in the counter. If the ref count drops to 0 the object is removed from the counter completely. Parameters:   id - is a unique ID for the object. the new ref count values public List values()(Code) Returns a complete list of the values in the counter. a Collection containing the values. 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)