com.bigdata.btree

Interface IAutoboxBTree

All Known Subinterfaces:

IClientIndex, IIndex, ILocalBTreeView, IScaleOutClientIndex

All Known Implementing Classes:

AbstractBTree, AbstractCommitTimeIndex, AbstractScaleOutClientIndexView, AbstractScaleOutClientIndexView2, BTree, ClientIndexView, ClientIndexViewRefactor, CommitRecordIndex, CommitTimeIndex, CounterSetBTree, DelegateBTree, DelegateIndex, EventReceiver.EventBTree, FusedView, IndexSegment, IndexSegmentIndex, IsolatedFusedView, JournalIndex, MetadataIndex, MetadataIndexView, Name2Addr, ReadCommittedView, ReadOnlyIndex, TestMROWTransactions.MyBTree, TestRestartSafe.MyBTree, TxId2CommitTimeIndex, UnisolatedReadWriteIndex

public interface IAutoboxBTree

An interface defining non-batch methods for inserting, removing, lookup, and containment tests where keys and values are implicitly converted to and from byte[]s using the ITupleSerializer configured on the IndexMetadata object for the IIndex.

Author:

Bryan Thompson

Method Summary

Methods

Modifier and Type	Method and Description
boolean	contains(Object key) Return true iff there is an entry for the key.
Object	insert(Object key, Object value) Insert with auto-magic handling of keys and value objects.
Object	lookup(Object key) Lookup a value for a key.
Object	remove(Object key) Remove the key and its associated value.

Method Detail

insert

Object insert(Object key,
            Object value)

Insert with auto-magic handling of keys and value objects.

Parameters:

key - The key is implicitly converted to an unsigned byte[].

value - The value is implicitly converted to a byte[].

Returns:

The de-serialized old value -or- null if there was no value stored under that key.

lookup

Object lookup(Object key)

Lookup a value for a key.

Parameters:

key - The key is implicitly converted to an unsigned byte[].

Returns:

The de-serialized value or null if there is no entry for that key.

contains

boolean contains(Object key)

Return true iff there is an entry for the key.

Parameters:

key - The key is implicitly converted to an unsigned byte[].

Returns:

True if the btree contains an entry for that key.

remove

Object remove(Object key)

Remove the key and its associated value.

Parameters:

key - The key is implicitly converted to an unsigned byte[].

Returns:

The de-serialized value stored under that key or null if the key was not found.