Hi,
I have a menu action like this, listAll action:
@DomainService(
nature = NatureOfService.VIEW_MENU_ONLY,
objectType = "profile-preferences-services",
repositoryFor = ProfilePreferences.class
)
@DomainServiceLayout(
named = "Profile Preferences",
menuOrder = "3"
)
public class ProfilePreferencesMenu {
@Action(semantics = SemanticsOf.SAFE)
@ActionLayout(bookmarking = BookmarkPolicy.AS_ROOT)
@MemberOrder(sequence = "1")
public List<ProfilePreferences> listAll() {
return profilePreferencesRepository.listAll();
}
.
.
.
My Entity is that:
@javax.jdo.annotations.PersistenceCapable(
identityType=IdentityType.APPLICATION,
table="profile_preferences",
schema = "dbo"
)
@javax.jdo.annotations.Version(
strategy= VersionStrategy.VERSION_NUMBER,
column="version")
@javax.jdo.annotations.Queries({
@javax.jdo.annotations.Query(
name = "get",
value = "SELECT "
+ "FROM
com.foreks.user.settings.domain.preferences.ProfilePreferences "
+ "WHERE profileName.equals(:name)")
})
@DomainObject(
objectType = "profile-preferences"
)
public class ProfilePreferences implements Comparable<ProfilePreferences> {
public ProfilePreferences(final String profileName) {
setProfileName(profileName);
}
@javax.jdo.annotations.Column(allowsNull = "false", length= 150)
@PrimaryKey
@Getter @Setter
@Title(prepend = "Profile Preferences: ")
private String profileName;
@javax.jdo.annotations.Column(allowsNull = "true", length = 4000)
@Property(editing = Editing.ENABLED,hidden = Where.ALL_TABLES)
@Getter @Setter
private String preferences;
//region > delete (action)
@Action(semantics = SemanticsOf.NON_IDEMPOTENT_ARE_YOU_SURE)
public void delete() {
final String title = titleService.titleOf(this);
messageService.informUser(String.format("'%s' deleted", title));
repositoryService.remove(this);
}
//endregion
//region > delete (action)
@Action(semantics = SemanticsOf.NON_IDEMPOTENT)
public ProfilePreferences copy(@ParameterLayout(named="Profile Name")
String name) {
final ProfilePreferences object = new ProfilePreferences(name);
object.setPreferences(preferences);
repositoryService.persist(object);
return object;
}
//endregion
//region > toString, compareTo
@Override
public String toString() {
return ObjectContracts.toString(this, "profileName");
}
@Override
public int compareTo(final ProfilePreferences other) {
return ObjectContracts.compare(this, other, "profileName");
}
//endregion
//region > injected services
@javax.inject.Inject
RepositoryService repositoryService;
@javax.inject.Inject
TitleService titleService;
@javax.inject.Inject
MessageService messageService;
//endregion
}
When I click the List All action from the wicket viewer menu, server logs
this SQL queries:
19:03:07,334 [Native http-nio-8080-exec-4 DEBUG] SELECT
'com.foreks.user.settings.domain.preferences.ProfilePreferences' AS
NUCLEUS_TYPE,A0.preferences,A0.profileName,A0.version FROM
dbo.profile_preferences A0
19:03:07,436 [Native http-nio-8080-exec-5 DEBUG] SELECT
A0.preferences,A0.version FROM dbo.profile_preferences A0 WHERE
A0.profileName = <'ahl'>
19:03:07,442 [Native http-nio-8080-exec-5 DEBUG] SELECT
A0.preferences,A0.version FROM dbo.profile_preferences A0 WHERE
A0.profileName = <'akbank'>
19:03:07,448 [Native http-nio-8080-exec-5 DEBUG] SELECT
A0.preferences,A0.version FROM dbo.profile_preferences A0 WHERE
A0.profileName = <'bmd'>
19:03:07,454 [Native http-nio-8080-exec-5 DEBUG] SELECT
A0.preferences,A0.version FROM dbo.profile_preferences A0 WHERE
A0.profileName = <'DELTA'>
19:03:07,460 [Native http-nio-8080-exec-5 DEBUG] SELECT
A0.preferences,A0.version FROM dbo.profile_preferences A0 WHERE
A0.profileName = <'foreks'>
19:03:07,466 [Native http-nio-8080-exec-5 DEBUG] SELECT
A0.preferences,A0.version FROM dbo.profile_preferences A0 WHERE
A0.profileName = <'halky'>
19:03:07,472 [Native http-nio-8080-exec-5 DEBUG] SELECT
A0.preferences,A0.version FROM dbo.profile_preferences A0 WHERE
A0.profileName = <'hcbs'>
19:03:07,477 [Native http-nio-8080-exec-5 DEBUG] SELECT
A0.preferences,A0.version FROM dbo.profile_preferences A0 WHERE
A0.profileName = <'issanal'>
19:03:07,483 [Native http-nio-8080-exec-5 DEBUG] SELECT
A0.preferences,A0.version FROM dbo.profile_preferences A0 WHERE
A0.profileName = <'marbas'>
19:03:07,489 [Native http-nio-8080-exec-5 DEBUG] SELECT
A0.preferences,A0.version FROM dbo.profile_preferences A0 WHERE
A0.profileName = <'odeabank'>
19:03:07,495 [Native http-nio-8080-exec-5 DEBUG] SELECT
A0.preferences,A0.version FROM dbo.profile_preferences A0 WHERE
A0.profileName = <'odtu'>
19:03:07,500 [Native http-nio-8080-exec-5 DEBUG] SELECT
A0.preferences,A0.version FROM dbo.profile_preferences A0 WHERE
A0.profileName = <'osmanli'>
19:03:07,506 [Native http-nio-8080-exec-5 DEBUG] SELECT
A0.preferences,A0.version FROM dbo.profile_preferences A0 WHERE
A0.profileName = <'piramit'>
19:03:07,512 [Native http-nio-8080-exec-5 DEBUG] SELECT
A0.preferences,A0.version FROM dbo.profile_preferences A0 WHERE
A0.profileName = <'tebsanal'>
19:03:07,517 [Native http-nio-8080-exec-5 DEBUG] SELECT
A0.preferences,A0.version FROM dbo.profile_preferences A0 WHERE
A0.profileName = <'ZIRAAT'>
There is a query for each entity. The firs query
SELECT 'com.foreks.user.settings.domain.preferences.ProfilePreferences' AS
NUCLEUS_TYPE,A0.preferences,A0.profileName,A0.version FROM
dbo.profile_preferences A0
should be enough. Query for every entity becomes a performance problem. How
can I prevent this behavior ? Is there some thing wrong or missing in my
Entity Class or Menu Action Class ?
Help please :)
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