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| java.lang.Object
 org.hsqldb.Row
org.hsqldb.CachedRow
org.hsqldb.CachedDataRow
| CachedDataRow | | class CachedDataRow extends CachedRow (Code) | | Implementation of rows for tables with memory resident indexes and
disk-based data, such as TEXT tables.
version:
1.7.2 |
| Method Summary | |
| public boolean | equals(Object obj)
With the current implementation of TEXT table updates and inserts,
the lifetime scope of this method extends until redefinition of table
data source or shutdown.
Parameters:
obj - the reference object with which to compare. | | public int | getRealSize(RowOutputInterface out)
| | Row | getUpdatedRow()
| | public boolean | hasChanged()
| | void | setNewNodes()
Used when data is read from the disk into the Cache the first time. | | public void | setPos(int pos)
Sets the file position for the row and registers the row with
the table. | | void | setPrimaryNode(Node primary)
Used when data is re-read from the disk into the Cache. | | public void | write(RowOutputInterface out)
Writes the data to disk. |
| equals | | public boolean equals(Object obj)(Code) | | With the current implementation of TEXT table updates and inserts,
the lifetime scope of this method extends until redefinition of table
data source or shutdown.
Parameters:
obj - the reference object with which to compare. true if this object is the same as the obj argument;false otherwise. |
| getRealSize | | public int getRealSize(RowOutputInterface out)(Code) | | returned size does not include the row size written at the beginning
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| getUpdatedRow | | Row getUpdatedRow() throws HsqlException(Code) | | As the indexes are in-memory, this passes the existing primary node
for the construction of the new Row
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| hasChanged | | public boolean hasChanged()(Code) | | |
| setNewNodes | | void setNewNodes()(Code) | | Used when data is read from the disk into the Cache the first time.
New Nodes are created which are then indexed.
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| setPos | | public void setPos(int pos)(Code) | | Sets the file position for the row and registers the row with
the table.
Parameters:
pos - position in data file |
| setPrimaryNode | | void setPrimaryNode(Node primary)(Code) | | Used when data is re-read from the disk into the Cache. The Row is
already indexed so it is linked with the Node in the primary index.
the Nodes is made separetly.
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| write | | public void write(RowOutputInterface out)(Code) | | Writes the data to disk. Unlike CachedRow, hasChanged is never set
to true when changes are made to the Nodes. (Nodes are in-memory).
The only time this is used is when a new Row is added to the Caches.
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