Examples with KeyValueStore org.apache.samza.storage.kv.KeyValueStore used on opensource projects

Example 6 with KeyValueStore

use of org.apache.samza.storage.kv.KeyValueStore in project samza by apache.

the class WindowOperatorImpl method handleInit.

@Override
protected void handleInit(Context context) {
    KeyValueStore<TimeSeriesKey<K>, Object> store = (KeyValueStore<TimeSeriesKey<K>, Object>) context.getTaskContext().getStore(windowOpSpec.getOpId());
    if (initializer != null) {
        initializer.init(context);
    }
    if (keyFn != null) {
        keyFn.init(context);
    }
    // value. Else, we use the store in append-mode.
    if (foldLeftFn != null) {
        foldLeftFn.init(context);
        timeSeriesStore = new TimeSeriesStoreImpl(store, false);
    } else {
        timeSeriesStore = new TimeSeriesStoreImpl(store, true);
    }
}