@Override
        public Object processRemove(Object data) {
            Long value = (Long) data;
            if (minValue == null || minValue > value) {
                minValue = value;
            }
            return minValue;
        }
The initialization method for FunctionExecutor

@param attributeExpressionExecutors are the executors of each attributes in the function
@param processingMode               query processing mode
@param outputExpectsExpiredEvents   is expired events sent as output
@param configReader                 this hold the {@link MinForeverAttributeAggregatorExecutor}
                                    configuration reader.
@param siddhiQueryContext           Siddhi query runtime context
modules/siddhi-core/src/main/java/io/siddhi/core/query/selector/attribute/aggregator/MinForeverAttributeAggregatorExecutor.java