How to use

BroadcastVariableKey

in

org.apache.flink.runtime.broadcast

public void releaseReference(String name, int superstep, BatchTask<?, ?> referenceHolder) {
  BroadcastVariableKey key = new BroadcastVariableKey(referenceHolder.getEnvironment().getJobVertexId(), name, superstep);
  releaseReference(key, referenceHolder);
}

      String.format("The task %s did not hold a reference to the broadcast variable %s.",
          referenceHolder.getEnvironment().getTaskInfo().getTaskNameWithSubtasks(),
          key.toString()));
} else {
  return false;

public void releaseReference(String name, int superstep, BatchTask<?, ?> referenceHolder) {
  BroadcastVariableKey key = new BroadcastVariableKey(referenceHolder.getEnvironment().getJobVertexId(), name, superstep);
  releaseReference(key, referenceHolder);
}

private boolean decrementReferenceInternal(BatchTask<?, ?> referenceHolder, boolean errorIfNoReference) {
  synchronized (references) {
    if (disposed || references.isEmpty()) {
      if (errorIfNoReference) {
        throw new IllegalStateException("Decrementing reference to broadcast variable that is no longer alive.");
      } else {
        return false;
      }
    }
    if (!references.remove(referenceHolder)) {
      if (errorIfNoReference) {
        throw new IllegalStateException(
            String.format("The task %s did not hold a reference to the broadcast variable %s.",
                referenceHolder.getEnvironment().getTaskInfo().getTaskNameWithSubtasks(),
                key.toString()));
      } else {
        return false;
      }
    }
    if (references.isEmpty()) {
      disposed = true;
      data = null;
      transformed = null;
      return true;
    } else {
      return false;
    }
  }
}

public void releaseReference(String name, int superstep, BatchTask<?, ?> referenceHolder) {
  BroadcastVariableKey key = new BroadcastVariableKey(referenceHolder.getEnvironment().getJobVertexId(), name, superstep);
  releaseReference(key, referenceHolder);
}

private boolean decrementReferenceInternal(BatchTask<?, ?> referenceHolder, boolean errorIfNoReference) {
  synchronized (references) {
    if (disposed || references.isEmpty()) {
      if (errorIfNoReference) {
        throw new IllegalStateException("Decrementing reference to broadcast variable that is no longer alive.");
      } else {
        return false;
      }
    }
    if (!references.remove(referenceHolder)) {
      if (errorIfNoReference) {
        throw new IllegalStateException(
            String.format("The task %s did not hold a reference to the broadcast variable %s.",
                referenceHolder.getEnvironment().getTaskInfo().getTaskNameWithSubtasks(),
                key.toString()));
      } else {
        return false;
      }
    }
    if (references.isEmpty()) {
      disposed = true;
      data = null;
      transformed = null;
      return true;
    } else {
      return false;
    }
  }
}

public void releaseReference(String name, int superstep, BatchTask<?, ?> referenceHolder) {
  BroadcastVariableKey key = new BroadcastVariableKey(referenceHolder.getEnvironment().getJobVertexId(), name, superstep);
  releaseReference(key, referenceHolder);
}

private boolean decrementReferenceInternal(BatchTask<?, ?> referenceHolder, boolean errorIfNoReference) {
  synchronized (references) {
    if (disposed || references.isEmpty()) {
      if (errorIfNoReference) {
        throw new IllegalStateException("Decrementing reference to broadcast variable that is no longer alive.");
      } else {
        return false;
      }
    }
    if (!references.remove(referenceHolder)) {
      if (errorIfNoReference) {
        throw new IllegalStateException(
            String.format("The task %s did not hold a reference to the broadcast variable %s.",
                referenceHolder.getEnvironment().getTaskInfo().getTaskNameWithSubtasks(),
                key.toString()));
      } else {
        return false;
      }
    }
    if (references.isEmpty()) {
      disposed = true;
      data = null;
      transformed = null;
      return true;
    } else {
      return false;
    }
  }
}

public <T> BroadcastVariableMaterialization<T, ?> materializeBroadcastVariable(String name, int superstep, BatchTask<?, ?> holder,
    MutableReader<?> reader, TypeSerializerFactory<T> serializerFactory) throws IOException
  final BroadcastVariableKey key = new BroadcastVariableKey(holder.getEnvironment().getJobVertexId(), name, superstep);

String.format("The task %s already holds a reference to the broadcast variable %s.",
    referenceHolder.getEnvironment().getTaskInfo().getTaskNameWithSubtasks(),
    key.toString()));

final BroadcastVariableKey key = new BroadcastVariableKey(holder.getEnvironment().getJobVertexId(), name, superstep);

String.format("The task %s already holds a reference to the broadcast variable %s.",
    referenceHolder.getEnvironment().getTaskInfo().getTaskNameWithSubtasks(),
    key.toString()));

final BroadcastVariableKey key = new BroadcastVariableKey(holder.getEnvironment().getJobVertexId(), name, superstep);

String.format("The task %s already holds a reference to the broadcast variable %s.",
    referenceHolder.getEnvironment().getTaskInfo().getTaskNameWithSubtasks(),
    key.toString()));

final BroadcastVariableKey key = new BroadcastVariableKey(holder.getEnvironment().getJobVertexId(), name, superstep);

String.format("The task %s already holds a reference to the broadcast variable %s.",
    referenceHolder.getEnvironment().getTaskInfo().getTaskNameWithSubtasks(),
    key.toString()));