@Override
    public ProcessingMode getProcessingMode() {
        return ProcessingMode.BATCH;
    }
The init method of the StreamFunction

@param metaStreamEvent              the  stream event meta
@param inputDefinition              the incoming stream definition
@param attributeExpressionExecutors the executors for the function parameters
@param configReader                 this hold the {@link LogStreamProcessor} configuration reader.
@param streamEventClonerHolder      streamEventCloner Holder
@param findToBeExecuted             find will be executed
@param siddhiQueryContext           current siddhi query context
@return the additional output attributes introduced by the function
modules/siddhi-core/src/main/java/io/siddhi/core/query/processor/stream/LogStreamProcessor.java