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java.lang.Objectorg.apache.derby.impl.store.raw.data.StoredRecordHeader.OverflowInfo
private static class StoredRecordHeader.OverflowInfo
Class which holds the fields overflowId
, overflowPage
and firstField
, which are not needed when there is no
overflow. These fields are factored out to save Java heap space (see
DERBY-3130).
Field Summary | |
---|---|
private int |
firstField
If (hasFirstField()) then this field is the number of the column in the orginal row which is now stored as the first field in this row. |
private int |
overflowId
If (hasOverflow()) then this is the id of the row on page overflowPage where the next portion of the row can be found. |
private long |
overflowPage
If (hasOverflow()) then this is the page where where the next portion of the row can be found. |
Constructor Summary | |
---|---|
private |
StoredRecordHeader.OverflowInfo()
Create an empty OverflowInfo object. |
private |
StoredRecordHeader.OverflowInfo(StoredRecordHeader.OverflowInfo from)
Create a copy of a OverflowInfo object. |
Method Summary |
---|
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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private int overflowId
private long overflowPage
private int firstField
Constructor Detail |
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private StoredRecordHeader.OverflowInfo()
OverflowInfo
object.
private StoredRecordHeader.OverflowInfo(StoredRecordHeader.OverflowInfo from)
OverflowInfo
object.
|
Built on Thu 2011-03-10 11:54:14+0000, from revision ??? | ||||||||
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