Package com.orientechnologies.orient.core.index

Class OIndexDefinitionFactory

java.lang.Object

com.orientechnologies.orient.core.index.OIndexDefinitionFactory

public class OIndexDefinitionFactory
extends Object

Contains helper methods for OIndexDefinition creation.

IMPORTANT: This class designed for internal usage only.

Author:

Artem Orobets

Constructor Summary

Constructors

Constructor	Description
OIndexDefinitionFactory()

Method Summary

Modifier and Type	Method	Description
static OIndexDefinition	createIndexDefinition(OClass oClass, List<String> fieldNames, List<OType> types, List<OCollate> collates, String indexKind, String algorithm)	Creates an instance of OIndexDefinition for automatic index.
static OIndexDefinition	createSingleFieldIndexDefinition(String className, String fieldName, OType type, OType linkedType, OCollate collate, String indexKind, OPropertyMapIndexDefinition.INDEX_BY indexBy)
static String	extractFieldName(String fieldDefinition)	Extract field name from ' [by key|value]' field format.

Methods inherited from class java.lang.Object

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

Constructor Details

OIndexDefinitionFactory

public OIndexDefinitionFactory()

Method Details

createIndexDefinition

public static OIndexDefinition createIndexDefinition(OClass oClass,
 List<String> fieldNames,
 List<OType> types,
 List<OCollate> collates,
 String indexKind,
 String algorithm)

Creates an instance of OIndexDefinition for automatic index.

Parameters:

oClass - class which will be indexed

fieldNames - list of properties which will be indexed. Format should be ' [by key|value]', use 'by key' or 'by value' to describe how to index maps. By default maps indexed by key

types - types of indexed properties

collates -

indexKind -

algorithm -

Returns:

index definition instance

extractFieldName

public static String extractFieldName(String fieldDefinition)

Extract field name from ' [by key|value]' field format.

Parameters:

fieldDefinition - definition of field

Returns:

extracted property name

createSingleFieldIndexDefinition

public static OIndexDefinition createSingleFieldIndexDefinition(String className,
 String fieldName,
 OType type,
 OType linkedType,
 OCollate collate,
 String indexKind,
 OPropertyMapIndexDefinition.INDEX_BY indexBy)