Base.java

import uk.ac.imperial.lsds.seep.api.operator.LogicalOperator;
import uk.ac.imperial.lsds.seep.api.operator.SeepLogicalQuery;
import uk.ac.imperial.lsds.seep.api.operator.sinks.MarkerSink;
import uk.ac.imperial.lsds.seep.api.operator.sources.SyntheticSource;
import uk.ac.imperial.lsds.seep.api.state.SeepState;
import uk.ac.imperial.lsds.seep.api.state.stateimpl.SeepMap;
import uk.ac.imperial.lsds.seep.api.DataStore;
import uk.ac.imperial.lsds.seep.api.DataStoreType;
import uk.ac.imperial.lsds.seep.api.QueryComposer;
import uk.ac.imperial.lsds.seep.api.QueryExecutionMode;
import uk.ac.imperial.lsds.seep.api.data.Schema;
import uk.ac.imperial.lsds.seep.api.data.Schema.SchemaBuilder;
import uk.ac.imperial.lsds.seep.api.data.Type;


public class Base implements QueryComposer {

	@Override
	public SeepLogicalQuery compose() {
		
		Schema schema = SchemaBuilder.getInstance().newField(Type.INT, "userId").newField(Type.LONG, "value").build();
		
		SyntheticSource synSrc = SyntheticSource.newSource(0, null);
		LogicalOperator map = queryAPI.newStatelessOperator(new Map(), 1);
		
		SeepState ss = new SeepMap();
		LogicalOperator reduce = queryAPI.newStatefulOperator(new Reduce(), ss, 2);
		MarkerSink snk = MarkerSink.newSink(3);
		
		synSrc.connectTo(map, schema, 0);
		map.connectTo(reduce, 2, new DataStore(schema, DataStoreType.NETWORK));
		reduce.connectTo(snk, 5, new DataStore(schema, DataStoreType.NETWORK));
		
		SeepLogicalQuery slq = queryAPI.build();
		slq.setExecutionModeHint(QueryExecutionMode.ALL_SCHEDULED);
		
		return slq;
	}

}