Package com.alachisoft.ncache.client

Class ContinuousQuery

java.lang.Object

com.alachisoft.ncache.client.ContinuousQuery

public class ContinuousQuery
extends java.lang.Object

Class to hold Object query and values, intended for notifications.

Constructor Summary

Constructors

Constructor	Description
ContinuousQuery(QueryCommand command)	Initializes a new instance of the ContinuousQuery class.

Method Summary

Modifier and Type	Method	Description
void	addDataModificationListener(QueryDataModificationListener listener, java.util.EnumSet<EventType> eventEnumSet, EventDataFilter datafilter)	This method registers a custom listener that is fired on change in dataset of a Continuous Query.
boolean	equals(java.lang.Object obj)	Compares two instances of ContinuousQuery for equality.
QueryCommand	getQueryCommand()	Gets the query command for the Continuous Query.
int	hashCode()	Computes the hash code for the current object.
void	removeDataModificationListener(QueryDataModificationListener listener, java.util.EnumSet<EventType> eventEnumSet)	This method unregisters a custom listener that is fired on change in dataset of a Continuous Query.
void	setQueryCommand(QueryCommand value)	Sets the query command for the Continuous Query.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ContinuousQuery

public ContinuousQuery(QueryCommand command)

Initializes a new instance of the ContinuousQuery class.

Parameters:

command - QueryCommand containing query text and values.

Method Detail

getQueryCommand

public QueryCommand getQueryCommand()

Gets the query command for the Continuous Query.

Returns:

The QueryCommand instance.

setQueryCommand

public void setQueryCommand(QueryCommand value)

Sets the query command for the Continuous Query.

Parameters:

value - The QueryCommand instance.

addDataModificationListener

public void addDataModificationListener(QueryDataModificationListener listener,
                                        java.util.EnumSet<EventType> eventEnumSet,
                                        EventDataFilter datafilter)
                                 throws java.lang.IllegalArgumentException

This method registers a custom listener that is fired on change in dataset of a Continuous Query.

Parameters:

listener - The listener that is invoked whenever there is a change in dataset of Continuous Query.

eventEnumSet - Registers the listener with the specified event types in the enumset.

datafilter - This enum is to describe when registering an event, upon raise how much data is retrieved from cache when the event is raised.

Throws:

java.lang.IllegalArgumentException

removeDataModificationListener

public void removeDataModificationListener(QueryDataModificationListener listener,
                                           java.util.EnumSet<EventType> eventEnumSet)
                                    throws java.lang.IllegalArgumentException

This method unregisters a custom listener that is fired on change in dataset of a Continuous Query.

Parameters:

listener - The listener that was registered with Continuous Query.

eventEnumSet - Unregisters the listener with the specified event types in the enumset.

Throws:

java.lang.IllegalArgumentException

equals

public boolean equals(java.lang.Object obj)

Compares two instances of ContinuousQuery for equality.

Overrides:

equals in class java.lang.Object

Parameters:

obj - An instance of ContinuousQuery.

Returns:

True, if both ContinuousQuery instances are the same. Otherwise false.

See Also:

hashCode(), HashMap

hashCode

public int hashCode()

Computes the hash code for the current object. This method is supported for the benefit of hash tables such as those provided by HashMap.

Overrides:

hashCode in class java.lang.Object

Returns:

Hash code for the current object.

See Also:

Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)