Package com.intellij.util.ui.update

Class Update

java.lang.Object

com.intellij.util.ui.update.ComparableObject.Impl

com.intellij.util.ui.update.Update

All Implemented Interfaces:

ComparableObject, java.lang.Runnable

Direct Known Subclasses:

DisposableUpdate

public abstract class Update
extends ComparableObject.Impl
implements java.lang.Runnable

Describes a task for MergingUpdateQueue. Equal tasks (instances with the equal identity objects) are merged, i.e. only the first of them is executed. If some tasks are more generic than others override canEat(Update) method.

See Also:

MergingUpdateQueue

Nested Class Summary

Nested classes/interfaces inherited from interface com.intellij.util.ui.update.ComparableObject

ComparableObject.Impl

Field Summary

Fields

Modifier and Type	Field and Description
static int	HIGH_PRIORITY
static int	LOW_PRIORITY

Fields inherited from interface com.intellij.util.ui.update.ComparableObject

NONE

Constructor Summary

Constructors

Constructor and Description
Update(java.lang.Object identity)
Update(java.lang.Object identity, boolean executeInWriteAction)
Update(java.lang.Object identity, boolean executeInWriteAction, int priority)
Update(java.lang.Object identity, int priority)

Method Summary

Modifier and Type	Method and Description
boolean	canEat(Update update) Override this method and return true if this task is more generic than the passed update, e.g.
static Update	create(java.lang.Object identity, java.lang.Runnable runnable)
boolean	executeInWriteAction()
int	getPriority()
boolean	isDisposed()
boolean	isExpired()
boolean	isRejected()
void	setProcessed()
void	setRejected()
java.lang.String	toString()
boolean	wasProcessed()

Methods inherited from class com.intellij.util.ui.update.ComparableObject.Impl

equals, getEqualityObjects, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Runnable

run

Field Detail

LOW_PRIORITY

public static final int LOW_PRIORITY

See Also:

Constant Field Values

HIGH_PRIORITY

public static final int HIGH_PRIORITY

See Also:

Constant Field Values

Constructor Detail

Update

public Update(java.lang.Object identity)

Update

public Update(java.lang.Object identity,
              int priority)

Update

public Update(java.lang.Object identity,
              boolean executeInWriteAction)

Update

public Update(java.lang.Object identity,
              boolean executeInWriteAction,
              int priority)

Method Detail

isDisposed

public boolean isDisposed()

isExpired

public boolean isExpired()

wasProcessed

public boolean wasProcessed()

setProcessed

public void setProcessed()

executeInWriteAction

public boolean executeInWriteAction()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getPriority

public final int getPriority()

canEat

public boolean canEat(Update update)

Override this method and return true if this task is more generic than the passed update, e.g. this tasks repaint the whole frame and the passed task repaint some component on the frame. In that case the less generic tasks will be removed from the queue before execution.

setRejected

public void setRejected()

isRejected

public boolean isRejected()

create

public static Update create(java.lang.Object identity,
                            java.lang.Runnable runnable)