evaluate querydsl expressions as and.

kypo2-persistence-user-and-group/src/main/java/cz/muni/ics/kypo/userandgroup/repository/IDMGroupRepository.java

@@ -43,7 +43,7 @@ public interface IDMGroupRepository extends JpaRepository<IDMGroup, Long>,
     default void customize(QuerydslBindings querydslBindings, QIDMGroup qIDMGroup) {
         querydslBindings.bind(String.class).all((StringPath path, Collection<? extends String> values) -> {
             BooleanBuilder predicate = new BooleanBuilder();
-            values.forEach(value -> predicate.or(path.containsIgnoreCase(value)));
+            values.forEach(value -> predicate.and(path.containsIgnoreCase(value)));
             return Optional.ofNullable(predicate);
         });
     }

kypo2-persistence-user-and-group/src/main/java/cz/muni/ics/kypo/userandgroup/repository/RoleRepository.java

@@ -40,7 +40,7 @@ public interface RoleRepository extends JpaRepository<Role, Long>,
     default void customize(QuerydslBindings querydslBindings, QRole qRole) {
         querydslBindings.bind(String.class).all((StringPath path, Collection<? extends String> values) -> {
             BooleanBuilder predicate = new BooleanBuilder();
-            values.forEach(value -> predicate.or(path.containsIgnoreCase(value)));
+            values.forEach(value -> predicate.and(path.containsIgnoreCase(value)));
             return Optional.ofNullable(predicate);
         });
     }

kypo2-persistence-user-and-group/src/main/java/cz/muni/ics/kypo/userandgroup/repository/UserRepository.java

@@ -44,7 +44,7 @@ public interface UserRepository extends JpaRepository<User, Long>,
     default void customize(QuerydslBindings querydslBindings, QUser qUser) {
         querydslBindings.bind(String.class).all((StringPath path, Collection<? extends String> values) -> {
             BooleanBuilder predicate = new BooleanBuilder();
-            values.forEach(value -> predicate.or(path.containsIgnoreCase(value)));
+            values.forEach(value -> predicate.and(path.containsIgnoreCase(value)));
             return Optional.ofNullable(predicate);
         });
     }