overflowdb.storage

Class OdbStorage

java.lang.Object

overflowdb.storage.OdbStorage

All Implemented Interfaces:

java.lang.AutoCloseable

public class OdbStorage
extends java.lang.Object
implements java.lang.AutoCloseable

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	METADATA_KEY_LIBRARY_VERSIONS_MAX_ID
static java.lang.String	METADATA_KEY_STORAGE_FORMAT_VERSION
static java.lang.String	METADATA_KEY_STRING_TO_INT_MAX_ID
static java.lang.String	METADATA_PREFIX_LIBRARY_VERSIONS
protected org.h2.mvstore.MVStore	mvstore
static int	STORAGE_FORMAT_VERSION increase this number when persistence format changes (usually driven by changes in the NodeSerializer) this protects us from attempting to open outdated formats

Method Summary

Modifier and Type	Method and Description
java.util.Set<java.util.Map.Entry<java.lang.Long,byte[]>>	allNodes()
void	clearIndex(java.lang.String indexName)
void	clearIndices()
void	close()
static OdbStorage	createWithSpecificLocation(java.io.File mvstoreFile) create with specific mvstore file - which may or may not yet exist.
static OdbStorage	createWithTempFile()
void	flush() flush any remaining changes in underlying storage to disk
java.util.ArrayList<java.util.Map<java.lang.String,java.lang.String>>	getAllLibraryVersions()
java.util.Set<java.lang.String>	getIndexNames()
org.h2.mvstore.MVMap<java.lang.String,java.lang.String>	getMetaDataMVMap()
org.h2.mvstore.MVMap<java.lang.Long,byte[]>	getNodesMVMap()
byte[]	getSerializedNode(long nodeId)
java.io.File	getStorageFile()
org.h2.mvstore.MVMap<java.lang.String,java.lang.Integer>	getStringToIntMappings()
int	lookupOrCreateStringToIntMapping(java.lang.String s)
org.h2.mvstore.MVMap<java.lang.Object,long[]>	openIndex(java.lang.String indexName)
void	persist(long id, byte[] node)
void	persistLibraryVersion(java.lang.Class clazz)
void	persistLibraryVersion(java.lang.String name, java.lang.String version)
void	removeNode(java.lang.Long id)
java.lang.String	reverseLookupStringToIntMapping(int stringId)

Methods inherited from class java.lang.Object

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

Field Detail

STORAGE_FORMAT_VERSION

public static final int STORAGE_FORMAT_VERSION

increase this number when persistence format changes (usually driven by changes in the NodeSerializer) this protects us from attempting to open outdated formats

See Also:

Constant Field Values

METADATA_KEY_STORAGE_FORMAT_VERSION

public static final java.lang.String METADATA_KEY_STORAGE_FORMAT_VERSION

See Also:

Constant Field Values

METADATA_KEY_STRING_TO_INT_MAX_ID

public static final java.lang.String METADATA_KEY_STRING_TO_INT_MAX_ID

See Also:

Constant Field Values

METADATA_KEY_LIBRARY_VERSIONS_MAX_ID

public static final java.lang.String METADATA_KEY_LIBRARY_VERSIONS_MAX_ID

See Also:

Constant Field Values

METADATA_PREFIX_LIBRARY_VERSIONS

public static final java.lang.String METADATA_PREFIX_LIBRARY_VERSIONS

See Also:

Constant Field Values

mvstore

protected org.h2.mvstore.MVStore mvstore

Method Detail

createWithTempFile

public static OdbStorage createWithTempFile()

createWithSpecificLocation

public static OdbStorage createWithSpecificLocation(java.io.File mvstoreFile)

create with specific mvstore file - which may or may not yet exist. mvstoreFile won't be deleted at the end (unlike temp file constructors above)

persist

public void persist(long id,
                    byte[] node)

flush

public void flush()

flush any remaining changes in underlying storage to disk

close

public void close()

Specified by:

close in interface java.lang.AutoCloseable

getStorageFile

public java.io.File getStorageFile()

removeNode

public void removeNode(java.lang.Long id)

allNodes

public java.util.Set<java.util.Map.Entry<java.lang.Long,byte[]>> allNodes()

getNodesMVMap

public org.h2.mvstore.MVMap<java.lang.Long,byte[]> getNodesMVMap()

getMetaDataMVMap

public org.h2.mvstore.MVMap<java.lang.String,java.lang.String> getMetaDataMVMap()

getStringToIntMappings

public org.h2.mvstore.MVMap<java.lang.String,java.lang.Integer> getStringToIntMappings()

lookupOrCreateStringToIntMapping

public int lookupOrCreateStringToIntMapping(java.lang.String s)

reverseLookupStringToIntMapping

public java.lang.String reverseLookupStringToIntMapping(int stringId)

getIndexNames

public java.util.Set<java.lang.String> getIndexNames()

openIndex

public org.h2.mvstore.MVMap<java.lang.Object,long[]> openIndex(java.lang.String indexName)

clearIndices

public void clearIndices()

clearIndex

public void clearIndex(java.lang.String indexName)

getSerializedNode

public byte[] getSerializedNode(long nodeId)

persistLibraryVersion

public void persistLibraryVersion(java.lang.Class clazz)

persistLibraryVersion

public void persistLibraryVersion(java.lang.String name,
                                  java.lang.String version)

getAllLibraryVersions

public java.util.ArrayList<java.util.Map<java.lang.String,java.lang.String>> getAllLibraryVersions()