| org.apache.derby.iapi.store.access |
|
| Java Source File Name | Type | Comment |
| AccessFactory.java | Interface | Module interface for an access manager. |
| AccessFactoryGlobals.java | Interface | Global constants provided by the Access Interface. |
| BackingStoreHashtable.java | Class | A BackingStoreHashtable is a utility class which will store a set of rows into
an in memory hash table, or overflow the hash table to a tempory on disk
structure.
All rows must contain the same number of columns, and the column at position
N of all the rows must have the same format id. |
| BinaryOrderable.java | Interface | The Orderable interface represents a value that can
be linearly ordered.
Currently only supports linear (<, =, <=) operations.
Eventually we may want to do other types of orderings,
in which case there would probably be a number of interfaces
for each "class" of ordering.
The implementation must handle the comparison of null
values. |
| ColumnOrdering.java | Interface | The column ordering interface defines a column that is to be
ordered in a sort or index, and how it is to be ordered. |
| ConglomerateController.java | Interface | A conglomerate is an abstract storage structure (they
correspond to access methods). |
| ConglomPropertyQueryable.java | Interface | ConglomPropertyable provides the interfaces to read properties from a
conglomerate. |
| DatabaseInstant.java | Interface | A DatabaseInstant is a quantity which the database associates
with events to collate them.
This interface is used in the column SYS.SYSSYNCINSTANTS.INSTANT.
Assume a database associates a DatabaseInstant to an event E1. |
| DiskHashtable.java | Class | This class is used by BackingStoreHashtable when the BackingStoreHashtable must spill to disk.
It implements the methods of a hash table: put, get, remove, elements, however it is not implemented
as a hash table. |
| DynamicCompiledOpenConglomInfo.java | Interface | Information that can be "compiled" and reused per transaction per
open operation. |
| FileResource.java | Interface | Management of file resources within a database. |
| GenericScanController.java | Interface | The set of interfaces implemented by all types of ScanControllers.
A scan is the mechanism for iterating over the rows in a conglomerate,
the scan controller is the interface through which access clients
control the underlying scan. |
| GlobalXact.java | Class | This abstract class represents a global transaction id which can be tested
for equality against other transaction ids, which can be hashed into a
hash table, and which can be output as a string. |
| GroupFetchScanController.java | Interface | This scan controller can only be used for group fetch, no update
operations are supported, use ScanController if you need scan interfaces
other than group fetch.
In general group fetch will be more efficient than using the
ScanController fetchNext() interface to get rows one at a time. |
| KeyHasher.java | Class | Provides the ability to hash on multiple objects. |
| Qualifier.java | Interface |
A structure which is used to "qualify" a column. |
| RowCountable.java | Interface | RowCountable provides the interfaces to read and write row counts in
tables. |
| RowLocationRetRowSource.java | Interface | A RowLocationRetRowSource is the mechanism for iterating over a set of rows,
loading those rows into a conglomerate, and returning the RowLocation of the
inserted rows. |
| RowSource.java | Interface | A RowSource is the mechanism for iterating over a set of rows. |
| RowUtil.java | Class | A set of static utility methods to work with rows.
A row or partial row is described by two or three parameters.
- DataValueDescriptor[] row - an array of objects, one per column.
- FormatableBitSet validColumns -
an indication of which objects in row map to which columns
These objects can describe a complete row or a partial row. |
| ScanController.java | Interface | A scan is the mechanism for iterating over the rows in a conglomerate,
the scan controller is the interface through which access clients
control the underlying scan. |
| ScanInfo.java | Interface | This object provides performance information related to an open scan. |
| SortController.java | Interface | A sort controller is an interface for inserting rows
into a sort.
A sort is created with the createSort method of
TransactionController. |
| SortCostController.java | Interface | |
| SortInfo.java | Interface | This object provides performance information related to a sort. |
| SortObserver.java | Interface | A SortObserver is an object that is used as a callback by the
sorter. |
| SpaceInfo.java | Interface | Manage the result information from a single call to
ConglomerateController.getSpaceInfo(). |
| StaticCompiledOpenConglomInfo.java | Interface | Information that can be "compiled" once and then used over and over again
at execution time. |
| StoreCostController.java | Interface | The StoreCostController interface provides methods that an access client
(most likely the system optimizer) can use to get store's estimated cost of
various operations on the conglomerate the StoreCostController was opened
for.
It is likely that the implementation of StoreCostController will open
the conglomerate and will leave the conglomerate open until the
StoreCostController is closed. |
| StoreCostResult.java | Interface | Manage the result information from a single call to
StoreCostController.getScanCost(). |
| TransactionController.java | Interface | The TransactionController interface provides methods that an access client
can use to control a transaction, which include the methods for
gaining access to resources (conglomerates, scans, etc.) in the transaction
controller's storage manager. |
| TransactionInfo.java | Interface | |
| XATransactionController.java | Interface | This interface allows access to commit,prepare,abort global transactions
as part of a two phase commit protocol, during runtime. |