@Override
    public void delete(StateEvent deletingEvent, IndexedEventHolder indexedEventHolder) {
        indexedEventHolder.delete(attribute, operator, valueExpressionExecutor.execute(deletingEvent));
    }
Implementation of {@link CollectionExecutor} which handle compare condition.
modules/siddhi-core/src/main/java/io/siddhi/core/util/collection/executor/CompareCollectionExecutor.java