org.neo4j.kernel.configuration

Class Config

java.lang.Object

org.neo4j.kernel.configuration.Config

All Implemented Interfaces:

DiagnosticsProvider

public class Config
extends Object
implements DiagnosticsProvider

This class holds the overall configuration of a Neo4j database instance. Use the accessors to convert the internal key-value settings to other types.

Users can assume that old settings have been migrated to their new counterparts, and that defaults have been applied.

UI's can change configuration by calling applyChanges. Any listener, such as services that use this configuration, can be notified of changes by implementing the ConfigurationChangeListener interface.

Field Summary

Fields

Modifier and Type	Field and Description
static String	ALLOW_STORE_UPGRADE Deprecated.
static String	ARRAY_BLOCK_SIZE Deprecated.
static String	ARRAY_PROPERTY_STORE_MMAP_SIZE Deprecated.
static String	BACKUP_SLAVE Deprecated.
static String	CACHE_TYPE Deprecated.
static String	DEFAULT_DATA_SOURCE_NAME Deprecated.
static String	DUMP_CONFIGURATION Deprecated.
static String	ENABLE_ONLINE_BACKUP Deprecated.
static String	ENABLE_REMOTE_SHELL Deprecated.
static String	GC_MONITOR_THRESHOLD Deprecated.
static String	GC_MONITOR_WAIT_TIME Deprecated.
static String	GCR_CACHE_MIN_LOG_INTERVAL Deprecated.
static String	INTERCEPT_COMMITTING_TRANSACTIONS Deprecated.
static String	INTERCEPT_DESERIALIZED_TRANSACTIONS Deprecated.
static String	KEEP_LOGICAL_LOGS Deprecated.
static String	LOGICAL_LOG Deprecated.
static String	LUCENE_SEARCHER_CACHE_SIZE Deprecated.
static String	LUCENE_WRITER_CACHE_SIZE Deprecated.
static String	NEO_STORE Deprecated.
static String	NODE_AUTO_INDEXING Deprecated.
static String	NODE_CACHE_ARRAY_FRACTION Deprecated.
static String	NODE_CACHE_SIZE Deprecated.
static String	NODE_KEYS_INDEXABLE Deprecated.
static String	NODE_STORE_MMAP_SIZE Deprecated.
static String	PROPERTY_INDEX_KEY_STORE_MMAP_SIZE Deprecated.
static String	PROPERTY_INDEX_STORE_MMAP_SIZE Deprecated.
static String	PROPERTY_STORE_MMAP_SIZE Deprecated.
static String	READ_ONLY Deprecated.
static String	REBUILD_IDGENERATORS_FAST Deprecated.
static String	RELATIONSHIP_AUTO_INDEXING Deprecated.
static String	RELATIONSHIP_CACHE_ARRAY_FRACTION Deprecated.
static String	RELATIONSHIP_CACHE_SIZE Deprecated.
static String	RELATIONSHIP_KEYS_INDEXABLE Deprecated.
static String	RELATIONSHIP_STORE_MMAP_SIZE Deprecated.
static String	STORAGE_DIRECTORY Deprecated.
static String	STRING_BLOCK_SIZE Deprecated.
static String	STRING_PROPERTY_STORE_MMAP_SIZE Deprecated.
static String	TXMANAGER_IMPLEMENTATION Deprecated.
static String	USE_MEMORY_MAPPED_BUFFERS Deprecated.

Constructor Summary

Constructors

Constructor and Description
Config()
Config(Map<String,String> inputParams)
Config(Map<String,String> inputParams, Class<?>... settingsClasses)
Config(Map<String,String> inputParams, Iterable<Class<?>> settingsClasses)

Method Summary

Methods

Modifier and Type	Method and Description
void	acceptDiagnosticsVisitor(Object visitor) Accept a visitor that may or may not be capable of visiting this object.
void	addConfigurationChangeListener(ConfigurationChangeListener listener)
void	applyChanges(Map<String,String> newConfiguration) Replace the current set of configuration parameters with another one.
void	dump(DiagnosticsPhase phase, org.neo4j.kernel.impl.util.StringLogger log) Dump the diagnostic information of this DiagnosticsProvider for the specified phase to the provided log.
<T> T	get(Setting<T> setting) Retrieve a configuration property.
boolean	getBoolean(GraphDatabaseSetting.BooleanSetting setting) Deprecated.
String	getDiagnosticsIdentifier() Return an identifier for this DiagnosticsProvider.
double	getDouble(GraphDatabaseSetting.DoubleSetting setting) Deprecated.
long	getDuration(GraphDatabaseSetting.StringSetting setting) Deprecated.
<T extends Enum<T>> T	getEnum(Class<T> enumType, GraphDatabaseSetting.OptionsSetting graphDatabaseSetting) Deprecated.
float	getFloat(GraphDatabaseSetting.FloatSetting setting) Deprecated.
int	getInteger(GraphDatabaseSetting.IntegerSetting setting) Deprecated.
long	getLong(GraphDatabaseSetting.LongSetting setting) Deprecated.
Map<String,String>	getParams()
Iterable<Class<?>>	getSettingsClasses()
long	getSize(GraphDatabaseSetting.StringSetting setting) Deprecated.
static long	parseLongWithUnit(String numberWithPotentialUnit)
void	removeConfigurationChangeListener(ConfigurationChangeListener listener)
void	setLogger(org.neo4j.kernel.impl.util.StringLogger log)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_DATA_SOURCE_NAME

@Deprecated
public static final String DEFAULT_DATA_SOURCE_NAME

Deprecated.

See Also:

Constant Field Values

USE_MEMORY_MAPPED_BUFFERS

@Deprecated
public static final String USE_MEMORY_MAPPED_BUFFERS

Deprecated.

Tell Neo4j to use memory mapped buffers for accessing the native storage layer

See Also:

Constant Field Values

DUMP_CONFIGURATION

@Deprecated
public static final String DUMP_CONFIGURATION

Deprecated.

Print out the effective Neo4j configuration after startup

See Also:

Constant Field Values

KEEP_LOGICAL_LOGS

@Deprecated
public static final String KEEP_LOGICAL_LOGS

Deprecated.

Make Neo4j keep the logical transaction logs for being able to backup the database. Provides control over how much disk space logical logs are allowed to take per data source.

See Also:

Constant Field Values

ENABLE_REMOTE_SHELL

@Deprecated
public static final String ENABLE_REMOTE_SHELL

Deprecated.

Enable a remote shell server which shell clients can log in to

See Also:

Constant Field Values

ENABLE_ONLINE_BACKUP

@Deprecated
public static final String ENABLE_ONLINE_BACKUP

Deprecated.

Enable a support for running online backups

See Also:

Constant Field Values

BACKUP_SLAVE

@Deprecated
public static final String BACKUP_SLAVE

Deprecated.

Mark this database as a backup slave.

See Also:

Constant Field Values

READ_ONLY

@Deprecated
public static final String READ_ONLY

Deprecated.

Only allow read operations from this Neo4j instance.

See Also:

Constant Field Values

STORAGE_DIRECTORY

@Deprecated
public static final String STORAGE_DIRECTORY

Deprecated.

Relative path for where the Neo4j storage directory is located

See Also:

Constant Field Values

REBUILD_IDGENERATORS_FAST

@Deprecated
public static final String REBUILD_IDGENERATORS_FAST

Deprecated.

Use a quick approach for rebuilding the ID generators. This give quicker recovery time, but will limit the ability to reuse the space of deleted entities.

See Also:

Constant Field Values

NODE_STORE_MMAP_SIZE

@Deprecated
public static final String NODE_STORE_MMAP_SIZE

Deprecated.

The size to allocate for memory mapping the node store

See Also:

Constant Field Values

ARRAY_PROPERTY_STORE_MMAP_SIZE

@Deprecated
public static final String ARRAY_PROPERTY_STORE_MMAP_SIZE

Deprecated.

The size to allocate for memory mapping the array property store

See Also:

Constant Field Values

PROPERTY_INDEX_KEY_STORE_MMAP_SIZE

@Deprecated
public static final String PROPERTY_INDEX_KEY_STORE_MMAP_SIZE

Deprecated.

The size to allocate for memory mapping the store for property key strings

See Also:

Constant Field Values

PROPERTY_INDEX_STORE_MMAP_SIZE

@Deprecated
public static final String PROPERTY_INDEX_STORE_MMAP_SIZE

Deprecated.

The size to allocate for memory mapping the store for property key indexes

See Also:

Constant Field Values

PROPERTY_STORE_MMAP_SIZE

@Deprecated
public static final String PROPERTY_STORE_MMAP_SIZE

Deprecated.

The size to allocate for memory mapping the property value store

See Also:

Constant Field Values

STRING_PROPERTY_STORE_MMAP_SIZE

@Deprecated
public static final String STRING_PROPERTY_STORE_MMAP_SIZE

Deprecated.

The size to allocate for memory mapping the string property store

See Also:

Constant Field Values

RELATIONSHIP_STORE_MMAP_SIZE

@Deprecated
public static final String RELATIONSHIP_STORE_MMAP_SIZE

Deprecated.

The size to allocate for memory mapping the relationship store

See Also:

Constant Field Values

LOGICAL_LOG

@Deprecated
public static final String LOGICAL_LOG

Deprecated.

Relative path for where the Neo4j logical log is located

See Also:

Constant Field Values

NEO_STORE

@Deprecated
public static final String NEO_STORE

Deprecated.

Relative path for where the Neo4j storage information file is located

See Also:

Constant Field Values

CACHE_TYPE

@Deprecated
public static final String CACHE_TYPE

Deprecated.

The type of cache to use for nodes and relationships, one of [weak, soft, none, array]

See Also:

Constant Field Values

NODE_CACHE_SIZE

@Deprecated
public static final String NODE_CACHE_SIZE

Deprecated.

The amount of memory to use for the node cache (when using the 'gcr' cache).

See Also:

Constant Field Values

RELATIONSHIP_CACHE_SIZE

@Deprecated
public static final String RELATIONSHIP_CACHE_SIZE

Deprecated.

The amount of memory to use for the relationship cache (when using the 'gcr' cache).

See Also:

Constant Field Values

NODE_CACHE_ARRAY_FRACTION

@Deprecated
public static final String NODE_CACHE_ARRAY_FRACTION

Deprecated.

The fraction of the heap (1%-10%) to use for the base array in the node cache (when using the 'gcr' cache).

See Also:

Constant Field Values

RELATIONSHIP_CACHE_ARRAY_FRACTION

@Deprecated
public static final String RELATIONSHIP_CACHE_ARRAY_FRACTION

Deprecated.

The fraction of the heap (1%-10%) to use for the base array in the relationship cache (when using the 'gcr' cache).

See Also:

Constant Field Values

GCR_CACHE_MIN_LOG_INTERVAL

@Deprecated
public static final String GCR_CACHE_MIN_LOG_INTERVAL

Deprecated.

The minimal time that must pass in between logging statistics from the cache (when using the 'gcr' cache). Default unit is seconds, suffix with 's', 'm', or 'ms' to have the unit be seconds, minutes or milliseconds respectively.

See Also:

Constant Field Values

TXMANAGER_IMPLEMENTATION

@Deprecated
public static final String TXMANAGER_IMPLEMENTATION

Deprecated.

The name of the Transaction Manager service to use as defined in the TM service provider constructor, defaults to native.

See Also:

Constant Field Values

INTERCEPT_COMMITTING_TRANSACTIONS

@Deprecated
public static final String INTERCEPT_COMMITTING_TRANSACTIONS

Deprecated.

Determines whether any TransactionInterceptors loaded will intercept prepared transactions before they reach the logical log. Defaults to false.

See Also:

Constant Field Values

INTERCEPT_DESERIALIZED_TRANSACTIONS

@Deprecated
public static final String INTERCEPT_DESERIALIZED_TRANSACTIONS

Deprecated.

Determines whether any TransactionInterceptors loaded will intercept externally received transactions (e.g. in HA) before they reach the logical log and are applied to the store. Defaults to false.

See Also:

Constant Field Values

ALLOW_STORE_UPGRADE

@Deprecated
public static final String ALLOW_STORE_UPGRADE

Deprecated.

Boolean (one of true,false) defining whether to allow a store upgrade in case the current version of the database starts against an older store version. Setting this to true does not guarantee successful upgrade, just allows an attempt at it.

See Also:

Constant Field Values

STRING_BLOCK_SIZE

@Deprecated
public static final String STRING_BLOCK_SIZE

Deprecated.

See Also:

Constant Field Values

ARRAY_BLOCK_SIZE

@Deprecated
public static final String ARRAY_BLOCK_SIZE

Deprecated.

See Also:

Constant Field Values

NODE_KEYS_INDEXABLE

@Deprecated
public static final String NODE_KEYS_INDEXABLE

Deprecated.

A list of property names (comma separated) that will be indexed by default. This applies to Nodes only.

See Also:

Constant Field Values

RELATIONSHIP_KEYS_INDEXABLE

@Deprecated
public static final String RELATIONSHIP_KEYS_INDEXABLE

Deprecated.

A list of property names (comma separated) that will be indexed by default. This applies to Relationships only.

See Also:

Constant Field Values

NODE_AUTO_INDEXING

@Deprecated
public static final String NODE_AUTO_INDEXING

Deprecated.

Boolean value (one of true, false) that controls the auto indexing feature for nodes. Setting to false shuts it down unconditionally, while true enables it for every property, subject to restrictions in the configuration. The default is false.

See Also:

Constant Field Values

RELATIONSHIP_AUTO_INDEXING

@Deprecated
public static final String RELATIONSHIP_AUTO_INDEXING

Deprecated.

Boolean value (one of true, false) that controls the auto indexing feature for relationships. Setting to false shuts it down unconditionally, while true enables it for every property, subject to restrictions in the configuration. The default is false.

See Also:

Constant Field Values

LUCENE_SEARCHER_CACHE_SIZE

@Deprecated
public static final String LUCENE_SEARCHER_CACHE_SIZE

Deprecated.

Integer value that sets the maximum number of open lucene index searchers. The default is Integer.MAX_VALUE

See Also:

Constant Field Values

LUCENE_WRITER_CACHE_SIZE

@Deprecated
public static final String LUCENE_WRITER_CACHE_SIZE

Deprecated.

Integer value that sets the maximum number of open lucene index writers. The default is Integer.MAX_VALUE

See Also:

Constant Field Values

GC_MONITOR_WAIT_TIME

@Deprecated
public static final String GC_MONITOR_WAIT_TIME

Deprecated.

Amount of time in ms the GC monitor thread will wait before taking another measurement. Default is 100 ms.

See Also:

Constant Field Values

GC_MONITOR_THRESHOLD

@Deprecated
public static final String GC_MONITOR_THRESHOLD

Deprecated.

The amount of time in ms the monitor thread has to be blocked before logging a message it was blocked. Default is 200ms

See Also:

Constant Field Values

Constructor Detail

Config

public Config()

Config

public Config(Map<String,String> inputParams)

Config

public Config(Map<String,String> inputParams,
      Class<?>... settingsClasses)

Config

public Config(Map<String,String> inputParams,
      Iterable<Class<?>> settingsClasses)

Method Detail

getParams

public Map<String,String> getParams()

get

public <T> T get(Setting<T> setting)

Retrieve a configuration property.

applyChanges

public void applyChanges(Map<String,String> newConfiguration)

Replace the current set of configuration parameters with another one.

getSettingsClasses

public Iterable<Class<?>> getSettingsClasses()

setLogger

public void setLogger(org.neo4j.kernel.impl.util.StringLogger log)

addConfigurationChangeListener

public void addConfigurationChangeListener(ConfigurationChangeListener listener)

removeConfigurationChangeListener

public void removeConfigurationChangeListener(ConfigurationChangeListener listener)

getDiagnosticsIdentifier

public String getDiagnosticsIdentifier()

Description copied from interface: DiagnosticsProvider

Return an identifier for this DiagnosticsProvider. The result of this method must be stable, i.e. invoking this method multiple times on the same object should return equal strings. For DiagnosticsProviders where there is only one instance of that DiagnosticsProvider, an implementation like this is would be a sane default, given that the implementing class has a sensible name:

 public String getDiagnosticsIdentifier()
 {
     return getClass().getName();
 }
 

Specified by:

getDiagnosticsIdentifier in interface DiagnosticsProvider

Returns:

the identifier of this diagnostics provider.

acceptDiagnosticsVisitor

public void acceptDiagnosticsVisitor(Object visitor)

Description copied from interface: DiagnosticsProvider

Accept a visitor that may or may not be capable of visiting this object. Typical example:

 class OperationalStatistics implements DiagnosticsProvider
 {
     public void acceptDiagnosticsVisitor( Object visitor )
     {
         if ( visitor instanceof OperationalStatisticsVisitor )
         {
              ((OperationalStatisticsVisitor)visitor).visitOperationalStatistics( this );
         }
     }
 }
 
 interface OperationalStatisticsVisitor
 {
     void visitOperationalStatistics( OperationalStatistics statistics );
 }
 

Specified by:

acceptDiagnosticsVisitor in interface DiagnosticsProvider

Parameters:

visitor - the visitor visiting this DiagnosticsProvider.

dump

public void dump(DiagnosticsPhase phase,
        org.neo4j.kernel.impl.util.StringLogger log)

Description copied from interface: DiagnosticsProvider

Dump the diagnostic information of this DiagnosticsProvider for the specified phase to the provided log.

Specified by:

dump in interface DiagnosticsProvider

Parameters:

phase - the phase to dump information for.

log - the log to dump information to.

toString

public String toString()

Overrides:

toString in class Object

getBoolean

@Deprecated
public boolean getBoolean(GraphDatabaseSetting.BooleanSetting setting)

Deprecated.

getInteger

@Deprecated
public int getInteger(GraphDatabaseSetting.IntegerSetting setting)

Deprecated.

getLong

@Deprecated
public long getLong(GraphDatabaseSetting.LongSetting setting)

Deprecated.

getDouble

@Deprecated
public double getDouble(GraphDatabaseSetting.DoubleSetting setting)

Deprecated.

getFloat

@Deprecated
public float getFloat(GraphDatabaseSetting.FloatSetting setting)

Deprecated.

getSize

@Deprecated
public long getSize(GraphDatabaseSetting.StringSetting setting)

Deprecated.

parseLongWithUnit

public static long parseLongWithUnit(String numberWithPotentialUnit)

getDuration

@Deprecated
public long getDuration(GraphDatabaseSetting.StringSetting setting)

Deprecated.

getEnum

@Deprecated
public <T extends Enum<T>> T getEnum(Class<T> enumType,
                                       GraphDatabaseSetting.OptionsSetting graphDatabaseSetting)

Deprecated.