Examples with LiveQueryImpl org.drools.core.runtime.rule.impl.LiveQueryImpl used on opensource projects

Example 1 with LiveQueryImpl

use of org.drools.core.runtime.rule.impl.LiveQueryImpl in project drools by kiegroup.

the class StatefulKnowledgeSessionImpl method openLiveQuery.

public LiveQuery openLiveQuery(final String query, final Object[] arguments, final ViewChangedEventListener listener) {
    try {
        startOperation();
        this.lock.lock();
        this.kBase.executeQueuedActions();
        agenda.executeFlush();
        DroolsQuery queryObject = new DroolsQuery(query, arguments, new OpenQueryViewChangedEventListenerAdapter(listener), true, null, null, null, null, null);
        InternalFactHandle handle = this.handleFactory.newFactHandle(queryObject, null, this, this);
        final PropagationContext pCtx = pctxFactory.createPropagationContext(getNextPropagationIdCounter(), PropagationContext.Type.INSERTION, null, null, handle, getEntryPoint());
        evalQuery(queryObject.getName(), queryObject, handle, pCtx, false);
        return new LiveQueryImpl(this, handle);
    } finally {
        this.lock.unlock();
        endOperation();
    }
}