atavism.server.engine

Class NewsAndFrees<ElementType extends QuadTreeElement<ElementType>>

java.lang.Object

atavism.server.engine.NewsAndFrees<ElementType>

public class NewsAndFrees<ElementType extends QuadTreeElement<ElementType>>
extends java.lang.Object

Instances of this class are used to accumulate news and frees of objects, from the point of view of perceivers, so that we can perform the new and free operations, which generate messages, without holding the top-level quad tree lock.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.Map<Perceiver<ElementType>,PerceiverNewsAndFrees<ElementType>>	perceiverMap

Constructor Summary

Constructors

Constructor and Description
NewsAndFrees()

Method Summary

Modifier and Type	Method and Description
void	newPerceivers(ElementType elem, java.util.Collection<Perceiver<ElementType>> perceivers)
void	noteCurrentElement(Perceiver<ElementType> perceiver, ElementType element) If the perceiver says the element should be a current element, add it to the freedElements list
void	noteFreedElement(Perceiver<ElementType> perceiver, ElementType element) If the perceiver says the element should be a freed element, add it to the freedElements list
void	noteNewElement(Perceiver<ElementType> perceiver, ElementType element) If the perceiver says the element should be a new element, add it to the newElements list for the perceiver
void	oldPerceivers(ElementType elem, java.util.Collection<Perceiver<ElementType>> perceivers)
protected java.lang.Integer	processBatchedNewsAndFrees(OID mobilePerceiverOid) If the perceiverOid is non-null, the count returned is the count of the number of news plus number of frees for the perceiver identified by perceiverOid
java.lang.Integer	processNewsAndFrees()
java.lang.Integer	processNewsAndFrees(OID mobilePerceiverOid) Either process all news and frees in a single change subscription message, or process them one-by-one.
void	setNewPerceiverElements(Perceiver<ElementType> perceiver, java.util.Collection<ElementType> elements)
void	setOldPerceiverElements(Perceiver<ElementType> perceiver, java.util.Collection<ElementType> elements)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

perceiverMap

protected final java.util.Map<Perceiver<ElementType extends QuadTreeElement<ElementType>>,PerceiverNewsAndFrees<ElementType extends QuadTreeElement<ElementType>>> perceiverMap

Constructor Detail

NewsAndFrees

public NewsAndFrees()

Method Detail

setNewPerceiverElements

public void setNewPerceiverElements(Perceiver<ElementType> perceiver,
                                    java.util.Collection<ElementType> elements)

setOldPerceiverElements

public void setOldPerceiverElements(Perceiver<ElementType> perceiver,
                                    java.util.Collection<ElementType> elements)

newPerceivers

public void newPerceivers(ElementType elem,
                          java.util.Collection<Perceiver<ElementType>> perceivers)

oldPerceivers

public void oldPerceivers(ElementType elem,
                          java.util.Collection<Perceiver<ElementType>> perceivers)

noteNewElement

public void noteNewElement(Perceiver<ElementType> perceiver,
                           ElementType element)

If the perceiver says the element should be a new element, add it to the newElements list for the perceiver

noteFreedElement

public void noteFreedElement(Perceiver<ElementType> perceiver,
                             ElementType element)

If the perceiver says the element should be a freed element, add it to the freedElements list

noteCurrentElement

public void noteCurrentElement(Perceiver<ElementType> perceiver,
                               ElementType element)

If the perceiver says the element should be a current element, add it to the freedElements list

processNewsAndFrees

public java.lang.Integer processNewsAndFrees()

processNewsAndFrees

public java.lang.Integer processNewsAndFrees(OID mobilePerceiverOid)

Either process all news and frees in a single change subscription message, or process them one-by-one.

processBatchedNewsAndFrees

protected java.lang.Integer processBatchedNewsAndFrees(OID mobilePerceiverOid)

If the perceiverOid is non-null, the count returned is the count of the number of news plus number of frees for the perceiver identified by perceiverOid