CS186-proj2
2016-11-19 01:15:33 1 举报Cs186-proj2的tuple的uml
作者其他创作
大纲/内容
Tuple
- TupleDesc _tupleDesc- Field[] fields-RecordId _recordId
+getTupleDesc()
IntField
- int value
+ getValue()+ getType()
PageId
RecordId
- PageId _pageId- int _tupleNo
getPageId()
StringField
- String value- int maxSize
TdItem(private)
* Type fieldType* String fieldName
Field
TupleDesc
- List _items
HeapPageId
+ attribute1:type = defaultValue+ attribute2:type- attribute3:type
+ getTableId()+pageNumber()
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