tupleMemory = new LeftTupleList();
}
RightTupleMemory factHandleMemory;
if ( this.conf.isIndexRightBetaMemory() ) {
factHandleMemory = new RightTupleIndexHashTable( new FieldIndex[]{index} );
} else {
factHandleMemory = new RightTupleList();
}
memory = new BetaMemory( config.isSequential() ? null : tupleMemory,
factHandleMemory,