/**
* allocate closed part value pointable
*
* @param type
* @return the pointable object
*/
public IVisitablePointable allocateFieldValue(IAType type) {
if (type == null) return flatValueAllocator.allocate(null);
else if (type.getTypeTag().equals(ATypeTag.RECORD)) return recordValueAllocator.allocate(type);
else if (type.getTypeTag().equals(ATypeTag.UNORDEREDLIST)
|| type.getTypeTag().equals(ATypeTag.ORDEREDLIST)) return listValueAllocator.allocate(type);
else return flatValueAllocator.allocate(null);
}
/**
* allocate open part value pointable
*
* @param typeTag
* @return the pointable object
*/
public IVisitablePointable allocateFieldValue(ATypeTag typeTag, byte[] b, int offset)
throws AsterixException {
if (typeTag == null) return flatValueAllocator.allocate(null);
else if (typeTag.equals(ATypeTag.RECORD))
return recordValueAllocator.allocate(DefaultOpenFieldType.NESTED_OPEN_RECORD_TYPE);
else if (typeTag.equals(ATypeTag.UNORDEREDLIST)) {
ATypeTag listItemType = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(b[offset]);
if (listItemType == ATypeTag.ANY)
return listValueAllocator.allocate(DefaultOpenFieldType.NESTED_OPEN_AUNORDERED_LIST_TYPE);
else {
if (listItemType.isDerivedType()) return allocateFieldValue(listItemType, b, offset + 1);
else
return listValueAllocator.allocate(
unorederedListTypeAllocator.allocate(TypeTagUtil.getBuiltinTypeByTag(listItemType)));
}
} else if (typeTag.equals(ATypeTag.ORDEREDLIST)) {
ATypeTag listItemType = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(b[offset]);
if (listItemType == ATypeTag.ANY)
return listValueAllocator.allocate(DefaultOpenFieldType.NESTED_OPEN_AORDERED_LIST_TYPE);
else {
if (listItemType.isDerivedType()) return allocateFieldValue(listItemType, b, offset + 1);
else
return listValueAllocator.allocate(
orederedListTypeAllocator.allocate(TypeTagUtil.getBuiltinTypeByTag(listItemType)));
}
} else return flatValueAllocator.allocate(null);
}
public IVisitablePointable allocateEmpty() {
return flatValueAllocator.allocate(null);
}
public void reset() {
flatValueAllocator.reset();
recordValueAllocator.reset();
listValueAllocator.reset();
}
public IVisitablePointable allocateRecordValue(IAType type) {
return recordValueAllocator.allocate(type);
}
public IVisitablePointable allocateListValue(IAType type) {
return listValueAllocator.allocate(type);
}