er.neo4jadaptor.database.pool

Class DatabasePool

java.lang.Object

er.neo4jadaptor.database.pool.DatabasePool

public class DatabasePool
extends Object

Provides database instances with all its settings, except for the filesystem location, being read from system properties. Additionally it can perform database warm up, which can be useful especially in cases where the entire database is cached in memory.

Configuration system properties:

• "neo4j.pool.database.type" - database type label. Possible values are described in DatabaseFactoryTypeLabels.
• "neo4j.pool.database.config" - Neo4J database configuration dictionary
• "neo4j.pool.doWarmUp" - boolean flag denoting whether to perform initial database warm up (iterates over all properties for all nodes), defaults to false

Author:

Jedrzej Sobanski

Field Summary

Fields

Modifier and Type	Field and Description
static String	CONFIG_PROPERTY_KEY System property name for Neo4J configuration dictionary.
static String	DBTYPE_PROPERTY_KEY System property name for database DatabaseFactoryType label.
static DatabasePool	instance Singleton instance.
static boolean	WARMUP_DEFAULT_VALUE Default value for db warmup setting.
static String	WARMUP_PROPERTY_KEY System property name for db warmup.

Method Summary

Modifier and Type	Method and Description
org.neo4j.graphdb.GraphDatabaseService	get(String url) Gets database instance configured as in system properties operating at the given URL.

Methods inherited from class java.lang.Object

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

Field Detail

instance

public static final DatabasePool instance

Singleton instance.

DBTYPE_PROPERTY_KEY

public static final String DBTYPE_PROPERTY_KEY

System property name for database DatabaseFactoryType label.

See Also:

DatabaseFactoryTypeLabels, Constant Field Values

CONFIG_PROPERTY_KEY

public static final String CONFIG_PROPERTY_KEY

System property name for Neo4J configuration dictionary.

See Also:

Constant Field Values

WARMUP_PROPERTY_KEY

public static final String WARMUP_PROPERTY_KEY

System property name for db warmup.

See Also:

Constant Field Values

WARMUP_DEFAULT_VALUE

public static final boolean WARMUP_DEFAULT_VALUE

Default value for db warmup setting.

See Also:

Constant Field Values

Method Detail

get

public org.neo4j.graphdb.GraphDatabaseService get(String url)

Gets database instance configured as in system properties operating at the given URL.

Parameters:

url - database url

Returns:

database