com.devonfw.module.jpa.dataaccess.api

Class QueryUtil

java.lang.Object

com.devonfw.module.jpa.dataaccess.api.QueryHelper

com.devonfw.module.jpa.dataaccess.api.QueryUtil

public class QueryUtil
extends QueryHelper

Helper class for static access to features of QueryHelper.

Since:

3.0.0

Field Summary

Fields

Modifier and Type	Field and Description
private static QueryUtil	INSTANCE

Fields inherited from class com.devonfw.module.jpa.dataaccess.api.QueryHelper

QUERY_PROPERTY_TIMEOUT

Constructor Summary

Constructors

Constructor and Description
QueryUtil()

Method Summary

Modifier and Type	Method and Description
<E> org.springframework.data.domain.Page<E>	findPaginated(org.springframework.data.domain.Pageable pageable, com.querydsl.jpa.impl.JPAQuery<E> query, boolean determineTotal) Returns a Page of entities according to the supplied Pageable and JPAQuery.
static QueryUtil	get()
<T> com.querydsl.core.types.dsl.BooleanExpression	newInClause(com.querydsl.core.types.dsl.SimpleExpression<T> expression, Collection<T> inValues)
com.querydsl.core.types.dsl.BooleanExpression	newLikeClause(com.querydsl.core.types.dsl.StringExpression expression, String pattern, LikePatternSyntax syntax, boolean ignoreCase, boolean matchSubstring)
com.querydsl.core.types.dsl.BooleanExpression	newLikeClause(com.querydsl.core.types.dsl.StringExpression expression, String pattern, LikePatternSyntax syntax, boolean ignoreCase, boolean matchSubstring, boolean negate)
com.querydsl.core.types.dsl.BooleanExpression	newNotLikeClause(com.querydsl.core.types.dsl.StringExpression expression, String pattern, LikePatternSyntax syntax, boolean ignoreCase, boolean matchSubstring)
com.querydsl.core.types.dsl.BooleanExpression	newStringClause(com.querydsl.core.types.dsl.StringExpression expression, String value, StringSearchConfigTo config)
com.querydsl.core.types.dsl.BooleanExpression	newStringClause(com.querydsl.core.types.dsl.StringExpression expression, String value, StringSearchOperator operator, LikePatternSyntax syntax, boolean ignoreCase, boolean matchSubstring)
<T> void	whereIn(com.querydsl.jpa.impl.JPAQuery<?> query, com.querydsl.core.types.dsl.SimpleExpression<T> expression, Collection<T> inValues)
void	whereLike(com.querydsl.jpa.impl.JPAQuery<?> query, com.querydsl.core.types.dsl.StringExpression expression, String pattern, LikePatternSyntax syntax, boolean ignoreCase, boolean matchSubstring)
void	whereNotLike(com.querydsl.jpa.impl.JPAQuery<?> query, com.querydsl.core.types.dsl.StringExpression expression, String pattern, LikePatternSyntax syntax, boolean ignoreCase, boolean matchSubstring)
void	whereString(com.querydsl.jpa.impl.JPAQuery<?> query, com.querydsl.core.types.dsl.StringExpression expression, String value, StringSearchConfigTo config)

Methods inherited from class com.devonfw.module.jpa.dataaccess.api.QueryHelper

applySort, applyTimeout, findPaginatedGeneric

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

private static final QueryUtil INSTANCE

Constructor Detail

QueryUtil

public QueryUtil()

Method Detail

whereLike

public void whereLike(com.querydsl.jpa.impl.JPAQuery<?> query,
                      com.querydsl.core.types.dsl.StringExpression expression,
                      String pattern,
                      LikePatternSyntax syntax,
                      boolean ignoreCase,
                      boolean matchSubstring)

Overrides:

whereLike in class QueryHelper

Parameters:

query - the JPAQuery to modify.

expression - the StringExpression to create the LIKE-clause from.

pattern - the pattern for the LIKE-clause to create.

syntax - the LikePatternSyntax of the given pattern.

ignoreCase - - true to ignore the case, false otherwise (to search case-sensitive).

matchSubstring - - true to match also if the given pattern shall also match substrings on the given StringExpression.

newLikeClause

public com.querydsl.core.types.dsl.BooleanExpression newLikeClause(com.querydsl.core.types.dsl.StringExpression expression,
                                                                   String pattern,
                                                                   LikePatternSyntax syntax,
                                                                   boolean ignoreCase,
                                                                   boolean matchSubstring,
                                                                   boolean negate)

Overrides:

newLikeClause in class QueryHelper

Parameters:

expression - the StringExpression to create the LIKE-clause from.

pattern - the pattern for the LIKE-clause to create.

syntax - the LikePatternSyntax of the given pattern.

ignoreCase - - true to ignore the case, false otherwise (to search case-sensitive).

matchSubstring - - true to match also if the given pattern shall also match substrings on the given StringExpression.

negate - - true for NOT LIKE, false for LIKE.

Returns:

the LIKE-clause as BooleanExpression.

newStringClause

public com.querydsl.core.types.dsl.BooleanExpression newStringClause(com.querydsl.core.types.dsl.StringExpression expression,
                                                                     String value,
                                                                     StringSearchConfigTo config)

Overrides:

newStringClause in class QueryHelper

Parameters:

expression - the StringExpression to search on.

value - the string value or pattern to search for.

config - the StringSearchConfigTo to configure the search. May be null for regular equals search as default fallback.

Returns:

the new BooleanExpression for the specified string comparison clause.

newStringClause

public com.querydsl.core.types.dsl.BooleanExpression newStringClause(com.querydsl.core.types.dsl.StringExpression expression,
                                                                     String value,
                                                                     StringSearchOperator operator,
                                                                     LikePatternSyntax syntax,
                                                                     boolean ignoreCase,
                                                                     boolean matchSubstring)

Overrides:

newStringClause in class QueryHelper

Parameters:

expression - the StringExpression to search on.

value - the string value or pattern to search for.

operator - the StringSearchOperator used to compare the search string value.

syntax - the LikePatternSyntax of the given pattern.

ignoreCase - - true to ignore the case, false otherwise (to search case-sensitive).

matchSubstring - - true to match also if the given pattern shall also match substrings on the given StringExpression.

Returns:

the new BooleanExpression for the specified string comparison clause.

whereString

public void whereString(com.querydsl.jpa.impl.JPAQuery<?> query,
                        com.querydsl.core.types.dsl.StringExpression expression,
                        String value,
                        StringSearchConfigTo config)

Overrides:

whereString in class QueryHelper

Parameters:

query - the JPAQuery to modify.

expression - the StringExpression to search on.

value - the string value or pattern to search for.

config - the StringSearchConfigTo to configure the search. May be null for regular equals search.

whereNotLike

public void whereNotLike(com.querydsl.jpa.impl.JPAQuery<?> query,
                         com.querydsl.core.types.dsl.StringExpression expression,
                         String pattern,
                         LikePatternSyntax syntax,
                         boolean ignoreCase,
                         boolean matchSubstring)

Overrides:

whereNotLike in class QueryHelper

Parameters:

query - the JPAQuery to modify.

expression - the StringExpression to create the NOT LIKE-clause from.

pattern - the pattern for the NOT LIKE-clause to create.

syntax - the LikePatternSyntax of the given pattern.

ignoreCase - - true to ignore the case, false otherwise (to search case-sensitive).

matchSubstring - - true to match also if the given pattern shall also match substrings on the given StringExpression.

newLikeClause

public com.querydsl.core.types.dsl.BooleanExpression newLikeClause(com.querydsl.core.types.dsl.StringExpression expression,
                                                                   String pattern,
                                                                   LikePatternSyntax syntax,
                                                                   boolean ignoreCase,
                                                                   boolean matchSubstring)

Overrides:

newLikeClause in class QueryHelper

Parameters:

expression - the StringExpression to create the LIKE-clause from.

pattern - the pattern for the LIKE-clause to create.

syntax - the LikePatternSyntax of the given pattern.

ignoreCase - - true to ignore the case, false otherwise (to search case-sensitive).

matchSubstring - - true to match also if the given pattern shall also match substrings on the given StringExpression.

Returns:

the LIKE-clause as BooleanExpression.

newNotLikeClause

public com.querydsl.core.types.dsl.BooleanExpression newNotLikeClause(com.querydsl.core.types.dsl.StringExpression expression,
                                                                      String pattern,
                                                                      LikePatternSyntax syntax,
                                                                      boolean ignoreCase,
                                                                      boolean matchSubstring)

Overrides:

newNotLikeClause in class QueryHelper

Parameters:

expression - the StringExpression to create the NOT LIKE-clause from.

pattern - the pattern for the NOT LIKE-clause to create.

syntax - the LikePatternSyntax of the given pattern.

ignoreCase - - true to ignore the case, false otherwise (to search case-sensitive).

matchSubstring - - true to match also if the given pattern shall also match substrings on the given StringExpression.

Returns:

the NOT LIKE-clause as BooleanExpression.

newInClause

public <T> com.querydsl.core.types.dsl.BooleanExpression newInClause(com.querydsl.core.types.dsl.SimpleExpression<T> expression,
                                                                     Collection<T> inValues)

Overrides:

newInClause in class QueryHelper

Type Parameters:

T - generic type of the Collection values for the IN-clause(s).

Parameters:

expression - the SimpleExpression used to create the IN-clause(s).

inValues - the Collection of values for the IN-clause(s).

Returns:

the BooleanExpression for the IN-clause(s) oder null if inValues is null or empty.

whereIn

public <T> void whereIn(com.querydsl.jpa.impl.JPAQuery<?> query,
                        com.querydsl.core.types.dsl.SimpleExpression<T> expression,
                        Collection<T> inValues)

Overrides:

whereIn in class QueryHelper

Type Parameters:

T - generic type of the Collection values for the IN-clause(s).

Parameters:

query - the JPAQuery where to add the IN-clause(s) from the other given parameters.

expression - the SimpleExpression used to create the IN-clause(s).

inValues - the Collection of values for the IN-clause(s).

See Also:

QueryHelper.newInClause(SimpleExpression, Collection)

findPaginated

public <E> org.springframework.data.domain.Page<E> findPaginated(org.springframework.data.domain.Pageable pageable,
                                                                 com.querydsl.jpa.impl.JPAQuery<E> query,
                                                                 boolean determineTotal)

Returns a Page of entities according to the supplied Pageable and JPAQuery.

Type Parameters:

E - generic type of the entity.

Parameters:

pageable - contains information about the requested page and sorting.

query - is a query which is pre-configured with the desired conditions for the search.

determineTotal - - true to determine the total number of hits, false otherwise.

Returns:

a paginated list.

get

public static QueryUtil get()

Returns:

the QueryUtil instance.