Top Interfaces Classes

module org.apache.derby.engine

Package org.apache.derby.impl.store.access.btree

Interface Summary

Modifier and Type	Interface and Description
public interface	BTreeLockingPolicy The generic.BTree directory wants to know as little about locking as possible, in order to make the code usuable by multiple implementations.

Class Summary

Modifier and Type	Class and Description
public class	BranchControlRow A branch row contains key fields and the pointer to the child page.
public class	BranchRow Implements row which is stored in the branch pages of a btree.
public abstract class	BTree A b-tree object corresponds to an instance of a b-tree conglomerate.
public class	BTreeController A b-tree controller corresponds to an instance of an open b-tree conglomerate.
public class	BTreeCostController 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.
public class	BTreeForwardScan A b-tree scan controller corresponds to an instance of an open b-tree scan.
public class	BTreeMaxScan A BTreeScan implementation that provides the 95% solution to the max on btree problem.
pack-priv class	BTreePostCommit The BTreePostCommit class implements the Serviceable protocol.
public class	BTreeRowPosition
public abstract class	BTreeScan A b-tree scan controller corresponds to an instance of an open b-tree scan.
pack-priv class	BTreeScanInfo This object provides performance information related to an open scan.
public abstract class	ControlRow Base class for leaf and branch control rows.
public class	D_BTreeController
public class	LeafControlRow
pack-priv class	LevelInfo A BTreeDiag class is a "helper" class for the rest of the btree generic code.
public class	OpenBTree An open b-tree contains fields and methods common to scans and controllers.
public class	SearchParameters Parameters that are passed down during a recursive b-tree search.
public class	WaitError This error is never seen outside of the btree implementation.