@Override
protected void initializeOp(Configuration hconf) throws HiveException {
super.initializeOp(hconf);
metadataValueTag = new int[numAliases];
for (int pos = 0; pos < numAliases; pos++) {
metadataValueTag[pos] = -1;
}
metadataKeyTag = -1;
bigTableAlias = order[posBigTable];
mapJoinTables = new HashMap<Byte, HashMapWrapper<AbstractMapJoinKey, MapJoinObjectValue>>();
rowContainerMap = new HashMap<Byte, MapJoinRowContainer<ArrayList<Object>>>();
// initialize the hash tables for other tables
for (int pos = 0; pos < numAliases; pos++) {
if (pos == posBigTable) {
continue;
}
HashMapWrapper<AbstractMapJoinKey, MapJoinObjectValue> hashTable =
new HashMapWrapper<AbstractMapJoinKey, MapJoinObjectValue>();
mapJoinTables.put(Byte.valueOf((byte) pos), hashTable);
MapJoinRowContainer<ArrayList<Object>> rowContainer =
new MapJoinRowContainer<ArrayList<Object>>();
rowContainerMap.put(Byte.valueOf((byte) pos), rowContainer);
}
hashTblInitedOnce = false;
}
