net.sf.mmm.orient.base.query.statement

Class OrientDbDialect

java.lang.Object

net.sf.mmm.orient.base.query.statement.OrientDbDialect

All Implemented Interfaces:

SqlDialect

public class OrientDbDialect
extends Object
implements SqlDialect

The implementation of SqlDialect for OrientDB.

Since:

8.0.0

Author:

hohwille

Field Summary

Fields

Modifier and Type	Field and Description
static OrientDbDialect	INSTANCE The singleton instance of this class.

Constructor Summary

Constructors

Constructor and Description
OrientDbDialect() The constructor.

Method Summary

Modifier and Type	Method and Description
String	quoteReference()
String	selectDistinct()
String	upsert()
String	variable(Variable<?> variable)

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.mmm.util.query.base.statement.SqlDialect

alias, and, as, as, assignment, conjuction, countAll, delete, deleteFrom, distinct, empty, endConjunction, endExpression, escape, escape, fetch, forUpdate, from, groupBy, having, in, innerJoin, insert, insertInto, into, is, isEmpty, isNotEmpty, isNotNull, isNull, join, leftJoin, leftOuterJoin, let, like, limit, literalFalse, literalNull, literalTrue, not, offset, operator, or, order, orderBy, parameter, parameter, property, ref, select, selectCountAll, separator, set, startConjunction, startExpression, update, where

Field Detail

INSTANCE

public static final OrientDbDialect INSTANCE

The singleton instance of this class.

Constructor Detail

OrientDbDialect

public OrientDbDialect()

The constructor.

Method Detail

quoteReference

public String quoteReference()

Specified by:

quoteReference in interface SqlDialect

Returns:

the optional quote used to escape references such as selection source, paths, etc. to prevent keyword collisions. Will be the empty String for no quoting of references.

variable

public String variable(Variable<?> variable)

Specified by:

variable in interface SqlDialect

Parameters:

variable - the Variable.

Returns:

the SQL for the Variable.

selectDistinct

public String selectDistinct()

Specified by:

selectDistinct in interface SqlDialect

Returns:

SqlDialect.select() #distinct() (as supported by dialect or regular select).

upsert

public String upsert()
              throws UnsupportedOperationException

Specified by:

upsert in interface SqlDialect

Returns:

the UPSERT keyword.

Throws:

UnsupportedOperationException - if not supported by this dialect.

See Also:

FeatureUpsert