com.blazebit.persistence.spi

Interface JpaProvider

public interface JpaProvider

TODO: documentation

Since:

1.2.0

Author:

Christian Beikov

Method Summary

Methods

Modifier and Type	Method and Description
String	escapeCharacter(char character)
String	getBooleanConditionalExpression(boolean value)
String	getBooleanExpression(boolean value)
String	getCollectionValueFunction() Normally returns VALUE, but since Hibernate does weird things when using that, it returns null.
String	getColumnType(javax.persistence.metamodel.Attribute<?,?> attribute)
String	getCustomFunctionInvocation(String functionName, int argumentCount)
Class<?>	getDefaultQueryResultType()
String	getNullExpression()
String	getOnClause()
boolean	isBag(javax.persistence.metamodel.Attribute<?,?> attribute)
boolean	isJoinTable(javax.persistence.metamodel.Attribute<?,?> attribute)
boolean	needsBracketsForListParamter()
boolean	needsJoinSubqueryRewrite() Returns whether key restricted left joins should be rewritten to subquery joins.
void	renderNullPrecedence(StringBuilder sb, String expression, String resolvedExpression, String order, String nulls)
boolean	supportsCountStar()
boolean	supportsEntityJoin()
boolean	supportsInsertStatement()
boolean	supportsJpa21()
boolean	supportsNullPrecedenceExpression()
boolean	supportsRootTreat()
boolean	supportsRootTreatJoin()
boolean	supportsSubtypePropertyResolving()
boolean	supportsTreatJoin()

Method Detail

supportsJpa21

boolean supportsJpa21()

supportsEntityJoin

boolean supportsEntityJoin()

supportsInsertStatement

boolean supportsInsertStatement()

needsBracketsForListParamter

boolean needsBracketsForListParamter()

needsJoinSubqueryRewrite

boolean needsJoinSubqueryRewrite()

Returns whether key restricted left joins should be rewritten to subquery joins. This is part of the workaround for https://hibernate.atlassian.net/browse/HHH-9329 which makes key restricted left joins wrong.

Returns:

true if joins should be rewritten to subquery joins, false otherwise

getBooleanExpression

String getBooleanExpression(boolean value)

getBooleanConditionalExpression

String getBooleanConditionalExpression(boolean value)

getNullExpression

String getNullExpression()

getOnClause

String getOnClause()

getCollectionValueFunction

String getCollectionValueFunction()

Normally returns VALUE, but since Hibernate does weird things when using that, it returns null. Returning null results in omitting VALUE in the final query that is passed to the JPA provider.

Returns:

The value function

getDefaultQueryResultType

Class<?> getDefaultQueryResultType()

getCustomFunctionInvocation

String getCustomFunctionInvocation(String functionName,
                                 int argumentCount)

escapeCharacter

String escapeCharacter(char character)

supportsNullPrecedenceExpression

boolean supportsNullPrecedenceExpression()

renderNullPrecedence

void renderNullPrecedence(StringBuilder sb,
                        String expression,
                        String resolvedExpression,
                        String order,
                        String nulls)

supportsRootTreat

boolean supportsRootTreat()

supportsTreatJoin

boolean supportsTreatJoin()

supportsRootTreatJoin

boolean supportsRootTreatJoin()

supportsSubtypePropertyResolving

boolean supportsSubtypePropertyResolving()

supportsCountStar

boolean supportsCountStar()

isJoinTable

boolean isJoinTable(javax.persistence.metamodel.Attribute<?,?> attribute)

isBag

boolean isBag(javax.persistence.metamodel.Attribute<?,?> attribute)

getColumnType

String getColumnType(javax.persistence.metamodel.Attribute<?,?> attribute)