this.pairBuildSideAccesssor = new IntPairSerializer();
this.pairProbeSideAccesssor = new IntPairSerializer();
this.pairBuildSideComparator = new IntPairComparator();
this.pairProbeSideComparator = new IntPairComparator();
this.pairComparator = new IntPairPairComparator();
this.memManager = new DefaultMemoryManager(32 * 1024 * 1024,1);
this.ioManager = new IOManager();
}