Package io.higson.runtime.sync

Class RuntimeWatcher

java.lang.Object

io.higson.runtime.sync.BaseWatcher

io.higson.runtime.sync.RuntimeWatcher

All Implemented Interfaces:

Runnable

Direct Known Subclasses:

FunctionRuntimeWatcher, ParamRuntimeWatcher

public abstract class RuntimeWatcher
extends BaseWatcher
implements Runnable

Author:

przemek hertel

Field Summary

Fields

Modifier and Type	Field	Description
protected List<Trackable>	allCached	All elements read from cache just before cache sync.
protected List<Trackable>	allFresh	All elements read from database just before cache sync.
protected WatcherEventListener	eventListener
protected List<WatcherEvent>	events
protected Date	lastUpdate
protected Date	timestamp

Fields inherited from class io.higson.runtime.sync.BaseWatcher

config, log, running

Constructor Summary

Constructors

Constructor	Description
RuntimeWatcher()

Method Summary

Modifier and Type	Method	Description
void	checkPossibleModification()
void	doWatch()
abstract List<Trackable>	getAllCached()	get all cached elements
abstract List<Trackable>	getAllLastUpdates()	gets all synchronized components from specific table
abstract ElementType	getElementType()	returns type that watcher is monitoring
abstract Date	getLastUpdate()	gets largest last update sync date
abstract void	invalidate(int id)	removes element in cache
protected boolean	possibleModification()
abstract void	reload(int id)	the implementation makes the decision whether the supplied element (id) should be reloaded or not
void	setEventListener(WatcherEventListener listener)

Methods inherited from class io.higson.runtime.sync.BaseWatcher

getConfig, getWatcherName, initWatcher, isRunning, print, print, run, setConfig, start, stop, watch

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Runnable

run

Field Details

timestamp

protected Date timestamp

eventListener

protected WatcherEventListener eventListener

events

protected List<WatcherEvent> events

lastUpdate

protected Date lastUpdate

allFresh

protected List<Trackable> allFresh

All elements read from database just before cache sync.

allCached

protected List<Trackable> allCached

All elements read from cache just before cache sync.

Constructor Details

RuntimeWatcher

public RuntimeWatcher()

Method Details

doWatch

public void doWatch()

Specified by:

doWatch in class BaseWatcher

checkPossibleModification

public void checkPossibleModification()

setEventListener

public void setEventListener(WatcherEventListener listener)

possibleModification

protected boolean possibleModification()

getLastUpdate

public abstract Date getLastUpdate()

gets largest last update sync date

Returns:

largest lastUpdate Date

getAllLastUpdates

public abstract List<Trackable> getAllLastUpdates()

gets all synchronized components from specific table

Returns:

list of Trackable components

See Also:

• Trackable

getAllCached

public abstract List<Trackable> getAllCached()

get all cached elements

Returns:

all cached objects

invalidate

public abstract void invalidate(int id)

removes element in cache

Parameters:

id - of element to remove

reload

public abstract void reload(int id)

the implementation makes the decision whether the supplied element (id) should be reloaded or not

Parameters:

id - of element whose change was detected

getElementType

public abstract ElementType getElementType()

returns type that watcher is monitoring

Returns:

ElementType object

See Also:

• ElementType