Examples of play.classloading.ApplicationClassloaderState

play.classloading.ApplicationClassloaderState
Each unique instance of this class represent a State of the ApplicationClassloader. When some classes is reloaded, them the ApplicationClassloader get a new state. This makes it easy for other parts of Play to cache stuff based on the the current State of the ApplicationClassloader.. They can store the reference to the current state, then later, before reading from cache, they could check if the state of the ApplicationClassloader has changed..

    protected static Object _javaWithCachingLock = new Object();


    protected static JavaWithCaching getJavaWithCaching() {
        synchronized( _javaWithCachingLock ) {
            // has the state of the ApplicationClassloader changed?
            ApplicationClassloaderState currentApplicationClasloaderState = Play.classloader.currentState;
            if( !currentApplicationClasloaderState.equals( _lastKnownApplicationClassloaderState )) {
                // it has changed.
                // we must drop our current _javaWithCaching and create a new one...
                // and start the caching over again.
                _lastKnownApplicationClassloaderState = currentApplicationClasloaderState;
                _javaWithCaching = new JavaWithCaching();

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    protected static Object _javaWithCachingLock = new Object();


    protected static JavaWithCaching getJavaWithCaching() {
        synchronized( _javaWithCachingLock ) {
            // has the state of the ApplicationClassloader changed?
            ApplicationClassloaderState currentApplicationClasloaderState = Play.classloader.currentState;
            if( !currentApplicationClasloaderState.equals( _lastKnownApplicationClassloaderState )) {
                // it has changed.
                // we must drop our current _javaWithCaching and create a new one...
                // and start the caching over again.
                _lastKnownApplicationClassloaderState = currentApplicationClasloaderState;
                _javaWithCaching = new JavaWithCaching();

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    private static Map<Class, String> class2ConfigNameMapping = new HashMap<Class, String>();


    protected synchronized static String getJPAConfigNameForEntityClass(Class clazz) {


        // if there is changes to application classes we must invalidate the cache
        ApplicationClassloaderState currentState = Play.classloader.currentState;
        if (!currentState.equals(ourClassloaderState)) {
            // must invalidate cache
            ourClassloaderState = currentState;
            class2ConfigNameMapping.clear();
        }

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    private static final Object _javaWithCachingLock = new Object();


    protected static JavaWithCaching getJavaWithCaching() {
        synchronized( _javaWithCachingLock ) {
            // has the state of the ApplicationClassloader changed?
            ApplicationClassloaderState currentApplicationClassloaderState = Play.classloader.currentState;
            if( !currentApplicationClassloaderState.equals( _lastKnownApplicationClassloaderState )) {
                // it has changed.
                // we must drop our current _javaWithCaching and create a new one...
                // and start the caching over again.
                _lastKnownApplicationClassloaderState = currentApplicationClassloaderState;
                _javaWithCaching = new JavaWithCaching();

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Related Classes of play.classloading.ApplicationClassloaderState

play.db.jpa.Entity2JPAConfigResolver

play.utils.Java

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