org.hibernate.search.elasticsearch.cfg

Enum IndexSchemaManagementStrategy

java.lang.Object

java.lang.Enum<IndexSchemaManagementStrategy>

org.hibernate.search.elasticsearch.cfg.IndexSchemaManagementStrategy

All Implemented Interfaces:

Serializable, Comparable<IndexSchemaManagementStrategy>

public enum IndexSchemaManagementStrategy
extends Enum<IndexSchemaManagementStrategy>

Strategy for creating/deleting the indexes in Elasticsearch upon session factory initialization and shut-down.

Author:

Gunnar Morling

Enum Constant Summary

Enum Constants

Enum Constant and Description
CREATE Existing indexes will not be altered, missing indexes will be created along with their mappings and analyzer definitions.
DROP_AND_CREATE Indexes - and all their contents - will be deleted and newly created (along with their mappings and analyzer definitions) upon session factory initialization.
DROP_AND_CREATE_AND_DROP The same as DROP_AND_CREATE, but indexes - and all their contents - will be deleted upon session factory shut-down as well.
NONE Indexes will never be created or deleted.
UPDATE Upon session factory initialization, index mappings and analyzer definitions will be updated to match expected ones, causing an exception if a mapping to be updated is not compatible with the expected one.
VALIDATE Upon session factory initialization, existing index mappings will be checked by Hibernate Search, causing an exception if a required mapping does not exist or exists but differs in a non-compatible way (more strict type constraints, for instance), or if an analyzer definition is missing or differs in any way.

Method Summary

Modifier and Type	Method and Description
String	getExternalName()
static IndexSchemaManagementStrategy	interpretPropertyValue(String propertyValue)
static IndexSchemaManagementStrategy	valueOf(String name) Returns the enum constant of this type with the specified name.
static IndexSchemaManagementStrategy[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

NONE

public static final IndexSchemaManagementStrategy NONE

Indexes will never be created or deleted.

Hibernate Search will not even check that the index actually exists.

The index schema (mapping and analyzer definitions) is not managed by Hibernate Search and is not checked.

VALIDATE

public static final IndexSchemaManagementStrategy VALIDATE

Upon session factory initialization, existing index mappings will be checked by Hibernate Search, causing an exception if a required mapping does not exist or exists but differs in a non-compatible way (more strict type constraints, for instance), or if an analyzer definition is missing or differs in any way.

This strategy will not bring any change to the mappings or analyzer definitions, nor create or delete any index.

UPDATE

public static final IndexSchemaManagementStrategy UPDATE

Upon session factory initialization, index mappings and analyzer definitions will be updated to match expected ones, causing an exception if a mapping to be updated is not compatible with the expected one.

Missing indexes will be created along with their mappings and analyzer definitions. Missing mappings and analyzer definitions on existing indexes will be created.

CREATE

public static final IndexSchemaManagementStrategy CREATE

Existing indexes will not be altered, missing indexes will be created along with their mappings and analyzer definitions.

DROP_AND_CREATE

public static final IndexSchemaManagementStrategy DROP_AND_CREATE

Indexes - and all their contents - will be deleted and newly created (along with their mappings and analyzer definitions) upon session factory initialization.

Note that whenever a search factory is altered after initialization (i.e. new entities are mapped), the index will not be deleted again: new mappings will simply be added to the index.

DROP_AND_CREATE_AND_DROP

public static final IndexSchemaManagementStrategy DROP_AND_CREATE_AND_DROP

The same as DROP_AND_CREATE, but indexes - and all their contents - will be deleted upon session factory shut-down as well.

Method Detail

values

public static IndexSchemaManagementStrategy[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (IndexSchemaManagementStrategy c : IndexSchemaManagementStrategy.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static IndexSchemaManagementStrategy valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

interpretPropertyValue

public static IndexSchemaManagementStrategy interpretPropertyValue(String propertyValue)

getExternalName

public String getExternalName()

Returns:

the name to use in configuration files.