com.bigdata.resources
Class IndexSegmentIndex

java.lang.Object
  com.bigdata.btree.AbstractBTree
      com.bigdata.btree.BTree
          com.bigdata.resources.IndexSegmentIndex

All Implemented Interfaces:

IAutoboxBTree, IBTreeStatistics, ICheckpointProtocol, IIndex, IIndexLocalCounter, ILinearList, ILocalBTreeView, IRangeQuery, ISimpleBTree, ICounterSetAccess, ICommitter

public class IndexSegmentIndex
extends BTree

BTree mapping IndexSegmentStore createTimes to IResourceMetadata records. The keys are the long integers (commitTimes) followed by the index segment UUID to break ties (this is not the scale-out index UUID, but the UUID of the specific index segment). The values are IResourceMetadata objects.

Note: Access to this object MUST be synchronized.

Note: This is used as a transient data structure that is populated from the file system by the ResourceManager.

Nested Class Summary

Nested classes/interfaces inherited from class com.bigdata.btree.BTree

BTree.Counter, BTree.LeafCursor, BTree.NodeFactory, BTree.PartitionedCounter, BTree.Stack

Nested classes/interfaces inherited from class com.bigdata.btree.AbstractBTree

AbstractBTree.IBTreeCounters

Field Summary

Fields inherited from class com.bigdata.btree.BTree

counter, height, nentries, nleaves, nnodes, recordVersion

Fields inherited from class com.bigdata.btree.AbstractBTree

branchingFactor, debug, DEBUG, dumpLog, ERROR_CLOSED, ERROR_LESS_THAN_ZERO, ERROR_READ_ONLY, ERROR_TOO_LARGE, ERROR_TRANSIENT, INFO, log, metadata, ndistinctOnWriteRetentionQueue, nodeSer, readOnly, root, store, storeCache, writeRetentionQueue

Fields inherited from interface com.bigdata.btree.IRangeQuery

ALL, CURSOR, DEFAULT, DELETED, FIXED_LENGTH_SUCCESSOR, KEYS, NONE, PARALLEL, READONLY, REMOVEALL, REVERSE, VALS

Constructor Summary

IndexSegmentIndex(IRawStore store, Checkpoint checkpoint, IndexMetadata metadata, boolean readOnly)
Load from the store.

Method Summary

void	add(SegmentMetadata resourceMetadata) Add an entry under the commitTime and resource UUID associated with the IResourceMetadata record.
static IndexSegmentIndex	createTransient() Create a transient instance.
protected byte[]	getKey(long commitTime, UUID uuid) Encodes the commit time into a key.

Methods inherited from class com.bigdata.btree.BTree

_reopen, asReadOnly, create, createTransient, createViewCheckpoint, fireDirtyEvent, getBloomFilter, getCheckpoint, getCounter, getDirtyListener, getEntryCount, getHeight, getLastCommitTime, getLeafCount, getMetadataAddr, getMutableBTree, getNodeCount, getRecordVersion, getRevisionTimestamp, getRootAddr, getSourceCount, getSources, getStore, handleCommit, load, load, needsCheckpoint, newLeafCursor, newLeafCursor, readBloomFilter, removeAll, setDirtyListener, setIndexMetadata, setLastCommitTime, writeCheckpoint, writeCheckpoint2

Methods inherited from class com.bigdata.btree.AbstractBTree

assertNotReadOnly, assertNotTransient, close, contains, contains, decodeRecordAddr, dump, dump, encodeRecordAddr, getBranchingFactor, getBtreeCounters, getContainsTuple, getCounters, getIndexMetadata, getLookupTuple, getNodeSerializer, getResourceMetadata, getRightMostNode, getRoot, getRootOrFinger, getStatistics, getUtilization, getWriteTuple, indexOf, insert, insert, insert, isOpen, isReadOnly, isTransient, keyAt, lookup, lookup, lookup, rangeCheck, rangeCopy, rangeCount, rangeCount, rangeCount, rangeCountExact, rangeCountExactWithDeleted, rangeIterator, rangeIterator, rangeIterator, rangeIterator, rangeIterator, readNodeOrLeaf, recycle, remove, remove, remove, reopen, setBTreeCounters, submit, submit, submit, toString, touch, valueAt, valueAt, writeNodeOrLeaf, writeNodeRecursive

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

IndexSegmentIndex

public IndexSegmentIndex(IRawStore store,
                         Checkpoint checkpoint,
                         IndexMetadata metadata,
                         boolean readOnly)

Load from the store.

Parameters:

store - The backing store.

checkpoint - The Checkpoint record.

metadata - The metadata record for the index.

Method Detail

createTransient

public static IndexSegmentIndex createTransient()

Create a transient instance.

Returns:

The new instance.

getKey

protected byte[] getKey(long commitTime,
                        UUID uuid)

Encodes the commit time into a key.

Parameters:

commitTime - The commit time.

The - UUID of the resource.

Returns:

The corresponding key.

add

public void add(SegmentMetadata resourceMetadata)

Add an entry under the commitTime and resource UUID associated with the IResourceMetadata record.

Parameters:

resourceMetadata - The IResourceMetadata record.

Throws:

IllegalArgumentException - if commitTime is 0L.

IllegalArgumentException - if resourceMetadata is null.

IllegalArgumentException - if there is already an entry registered under for the given timestamp.