public final class V1MasterTableDataSource extends Object
The MasterTableDataSource is basically backed by a VariableSizeDataStore for data and an IndexStore for storing indexing information.
Modifier and Type | Field and Description |
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protected BlobStoreInterface |
blob_store_interface
An abstracted reference to a BlobStore for managing blob references and
blob data.
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protected com.mckoi.database.DataCellCache |
cache
A reference to the DataCellCache object.
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protected int |
column_count
The number of columns in this table.
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protected com.mckoi.database.RIDList[] |
column_rid_list
The list of RIDList objects for each column in this table.
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protected boolean |
DATA_CELL_CACHING
Set to false to disable cell caching.
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protected String |
delete_hits_key |
protected String |
file_hits_key |
protected com.mckoi.database.MasterTableGarbageCollector |
garbage_collector
Manages scanning and deleting of rows marked as deleted within this
data source.
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protected DataIndexSetDef |
index_def
A DataIndexSetDef object that describes the indexes on the table.
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protected String |
insert_hits_key |
protected boolean |
is_closed
True if this table source is closed.
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protected String |
root_lock_key
The keys we use for Database.stats() for information for this table.
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protected DataTableDef |
table_def
A DataTableDef object that describes the table topology.
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protected int |
table_id
An integer that uniquely identifies this data source within the
conglomerate.
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protected com.mckoi.database.MultiVersionTableIndices |
table_indices
A multi-version representation of the table indices kept for this table
including the row list and the scheme indices.
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protected String |
total_hits_key |
Constructor and Description |
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V1MasterTableDataSource(TransactionSystem system,
com.mckoi.database.StoreSystem store_system,
com.mckoi.database.OpenTransactionList open_transactions)
The Constructor.
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Modifier and Type | Method and Description |
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void |
checkAndRepair(String file_name,
UserTerminal terminal)
Performs a complete check and repair of the table.
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void |
checkForCleanup()
Checks to determine if it is safe to clean up any resources in the
table, and if it is safe to do so, the space is reclaimed.
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protected void |
clearAllRootLocks()
Clears all root locks on the table.
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DebugLogger |
Debug()
Returns the DebugLogger object that can be used to log debug messages.
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protected void |
doOpeningScan()
This is called by the 'open' method.
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String |
getName()
Returns the name of this table source.
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String |
getSchema()
Returns the schema name of this table source.
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TransactionSystem |
getSystem()
Returns the TransactionSystem for this table.
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TableName |
getTableName()
Returns the TableName of this table source.
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protected void |
loadInternal()
Loads the internal variables.
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protected static String |
makeTableFileName(TransactionSystem system,
int table_id,
TableName table_name)
Creates a unique table name to give a file.
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protected TableDataSource |
minimalTableDataSource(IntegerListInterface master_index)
Creates a minimal TableDataSource object that represents this
MasterTableDataSource.
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protected void |
setupDataIndexSetDef()
Sets up the DataIndexSetDef object from the information set in this object.
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protected void |
setupDataTableDef(DataTableDef table_def)
Sets up the DataTableDef.
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protected com.mckoi.database.StoreSystem |
storeSystem()
Returns the StoreSystem object used to manage stores in the persistence
system.
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String |
toString()
For diagnostic.
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protected int table_id
protected boolean is_closed
protected DataTableDef table_def
protected DataIndexSetDef index_def
protected com.mckoi.database.MultiVersionTableIndices table_indices
protected com.mckoi.database.RIDList[] column_rid_list
protected boolean DATA_CELL_CACHING
protected final com.mckoi.database.DataCellCache cache
protected int column_count
protected com.mckoi.database.MasterTableGarbageCollector garbage_collector
protected BlobStoreInterface blob_store_interface
protected String root_lock_key
protected String total_hits_key
protected String file_hits_key
protected String delete_hits_key
protected String insert_hits_key
public V1MasterTableDataSource(TransactionSystem system, com.mckoi.database.StoreSystem store_system, com.mckoi.database.OpenTransactionList open_transactions)
public void checkAndRepair(String file_name, UserTerminal terminal) throws IOException
IOException
public void checkForCleanup()
public final TransactionSystem getSystem()
public final DebugLogger Debug()
public TableName getTableName()
public String getName()
public String getSchema()
protected static String makeTableFileName(TransactionSystem system, int table_id, TableName table_name)
The 'table_id' is a guarenteed unique number between all tables.
protected TableDataSource minimalTableDataSource(IntegerListInterface master_index)
protected void setupDataIndexSetDef()
protected void setupDataTableDef(DataTableDef table_def)
protected void loadInternal()
protected com.mckoi.database.StoreSystem storeSystem()
protected void doOpeningScan() throws IOException
IOException
protected void clearAllRootLocks()
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