Re: lazy loading 1.0.4
Armin, I looked at it a little better and it is because i have my own cache for model and view objects because they are used so much. I think that I also understand why the initial organisation query only queries the organisation and country table while there are a lot more references. When the reference id 's are null there are no queries. And the parent organisations are in the cache already while fetching all organisations. thanks, Dennis Indeed that's strange! Are you sure that no cache was used in your test (e.g. enable logging for class org.apache.ojb.broker.cache.CacheDistributor and check output)? If yes, it needs detailed analysis. In this case please add a bug report in JIRA with detailed description to reproduce the behavior. regards, Armin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: lazy loading 1.0.4
Dennis Bekkering wrote: Armin, It was the cache setting not the lazy loading.Fast as lightning again ;-) Strange though that without caching the 2nd number of queries is less? Indeed that's strange! Are you sure that no cache was used in your test (e.g. enable logging for class org.apache.ojb.broker.cache.CacheDistributor and check output)? If yes, it needs detailed analysis. In this case please add a bug report in JIRA with detailed description to reproduce the behavior. regards, Armin thanks, Dennis did you notice that the ObjectCache configuration moved from OJB.properties to repository file between rc7 and 1.0.4? You have to declare the cache within the jdbc-connection-descriptor using a object-cache element. http://db.apache.org/ojb/docu Does that mean that there is no caching at all now? Maybe that's the reason why there are more queries in 1.0.4. The thing is that I get just one query ,no joins, when i select all organisations from rc7 while there are some references that are not interfaces so they cannot be proxies anyway?? When I select 1 organisation I get all reference data with it when I call the getters. Calling all orgs on 1.0.4 I gives outer joins the 2nd time. : SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version ,A0.fax, A0.fieldofinterest,A0.name,A0.noofemployee,A0.phone,A0.postaladress, A0.postalcity,A0.postalzip,A0.url,A0.visitadress,A0.visitcity, A0.visitzip, A0.chamberofcommerceno ,A0.immediateparentid,A0.ultimateparentid, A0.postalcountryid,A0.organisationbrancheid,A0.visitcountryid, A0.organisationtypeid FROM organisation A0 [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl ] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.code, A0.name, A0.number FROM country A0 WHERE A0.id = ? regards, Dennis 2006/1/9, Armin Waibel [EMAIL PROTECTED]: Hi Dennis, if I summarize your posted sql-queries we will get 1.0.4: FROM organisation A0 FROM country A0 WHERE A0.id = ? FROM tablemodel A0 WHERE A0.name = ? FROM field A0 WHERE A0.id = ? FROM fieldtype A0 WHERE A0.id = ? FROM reference A0 WHERE A0.parenttablemodelid = ? FROM rendertype A0 WHERE A0.id = ? FROM tablemodel A0 WHERE A0.id IN (?,?,?,?) FROM field A0 WHERE A0.id IN (?,?) FROM fieldtype A0 WHERE A0.id = ? FROM field A0 WHERE A0.parenttablemodelid = ? FROM fieldtype A0 WHERE A0.id IN (?,?,?) FROM tablemodel A0 WHERE A0.id = ? rc7: FROM organisation A0 FROM country A0 WHERE A0.id = ? FROM tablemodel A0 WHERE A0.name = ? FROM field A0 WHERE A0.parenttablemodelid = ? FROM fieldtype A0 WHERE A0.id IN (?,?) FROM reference A0 WHERE A0.parenttablemodelid = ? Seems that lazy loading works, because there is no query for the m:n and 1:n references. Think the other queries are the result of the 1:1 references and additional queries if the referenced object has references too or some prefetching stuff. If this is the case you could try to enable lazy loading for some 1:1 references too and check the generated queries again. you post ProxyFactoryClass=org.apache.ojb.broker.core.proxy.ProxyFactoryCGLIBImpl ObjectCacheClass=org.apache.ojb.broker.cache.ObjectCacheDefaultImpl did you notice that the ObjectCache configuration moved from OJB.properties to repository file between rc7 and 1.0.4? You have to declare the cache within the jdbc-connection-descriptor using a object-cache element. http://db.apache.org/ojb/docu/guides/objectcache.html regards, Armin Dennis Bekkering wrote: Hello, I recently switched from rc7 to 1.0.4 and lazy loading seem to happen any more. Can someone please check my config out. 1.0.4 fires twice as much queries? thanks. sql output get all organisations 1.0.4 just after clear cache [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.fax, A0.fieldofinterest, A0.name,A0.noofemployee,A0.phone,A0.postaladress, A0.postalcity,A0.postalzip,A0.url,A0.visitadress,A0.visitcity, A0.visitzip, A0.chamberofcommerceno,A0.immediateparentid,A0.ultimateparentid, A0.postalcountryid ,A0.organisationbrancheid,A0.visitcountryid, A0.organisationtypeid FROM organisation A0 [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id ,A0.lastmodified,A0.creationdate,A0.version,A0.code, A0.name, A0.number FROM country A0 WHERE A0.id = ? [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl ] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version, A0.defaultvalue, A0.fixheader,A0.groupby,A0.indescriptor,A0.name,A0.subtablesheight , A0.descriptorfieldid,A0.defaultqueryid,A0.quicksearchqueryid FROM tablemodel A0 WHERE A0.name = ? [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version, A0.defaultvalue, A0.indescriptor,A0.name,A0.ordr,A0.showintable,A0.sortdown, A0.fieldtypeid ,
Re: lazy loading 1.0.4
Armin, It was the cache setting not the lazy loading.Fast as lightning again ;-) Strange though that without caching the 2nd number of queries is less? thanks, Dennis did you notice that the ObjectCache configuration moved from OJB.properties to repository file between rc7 and 1.0.4? You have to declare the cache within the jdbc-connection-descriptor using a object-cache element. http://db.apache.org/ojb/docu Does that mean that there is no caching at all now? Maybe that's the reason why there are more queries in 1.0.4. The thing is that I get just one query ,no joins, when i select all organisations from rc7 while there are some references that are not interfaces so they cannot be proxies anyway?? When I select 1 organisation I get all reference data with it when I call the getters. Calling all orgs on 1.0.4 I gives outer joins the 2nd time. : SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version ,A0.fax, A0.fieldofinterest,A0.name,A0.noofemployee,A0.phone,A0.postaladress, A0.postalcity,A0.postalzip,A0.url,A0.visitadress,A0.visitcity, A0.visitzip, A0.chamberofcommerceno ,A0.immediateparentid,A0.ultimateparentid, A0.postalcountryid,A0.organisationbrancheid,A0.visitcountryid, A0.organisationtypeid FROM organisation A0 [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl ] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.code, A0.name, A0.number FROM country A0 WHERE A0.id = ? regards, Dennis 2006/1/9, Armin Waibel [EMAIL PROTECTED]: Hi Dennis, if I summarize your posted sql-queries we will get 1.0.4: FROM organisation A0 FROM country A0 WHERE A0.id = ? FROM tablemodel A0 WHERE A0.name = ? FROM field A0 WHERE A0.id = ? FROM fieldtype A0 WHERE A0.id = ? FROM reference A0 WHERE A0.parenttablemodelid = ? FROM rendertype A0 WHERE A0.id = ? FROM tablemodel A0 WHERE A0.id IN (?,?,?,?) FROM field A0 WHERE A0.id IN (?,?) FROM fieldtype A0 WHERE A0.id = ? FROM field A0 WHERE A0.parenttablemodelid = ? FROM fieldtype A0 WHERE A0.id IN (?,?,?) FROM tablemodel A0 WHERE A0.id = ? rc7: FROM organisation A0 FROM country A0 WHERE A0.id = ? FROM tablemodel A0 WHERE A0.name = ? FROM field A0 WHERE A0.parenttablemodelid = ? FROM fieldtype A0 WHERE A0.id IN (?,?) FROM reference A0 WHERE A0.parenttablemodelid = ? Seems that lazy loading works, because there is no query for the m:n and 1:n references. Think the other queries are the result of the 1:1 references and additional queries if the referenced object has references too or some prefetching stuff. If this is the case you could try to enable lazy loading for some 1:1 references too and check the generated queries again. you post ProxyFactoryClass=org.apache.ojb.broker.core.proxy.ProxyFactoryCGLIBImpl ObjectCacheClass=org.apache.ojb.broker.cache.ObjectCacheDefaultImpl did you notice that the ObjectCache configuration moved from OJB.properties to repository file between rc7 and 1.0.4? You have to declare the cache within the jdbc-connection-descriptor using a object-cache element. http://db.apache.org/ojb/docu/guides/objectcache.html regards, Armin Dennis Bekkering wrote: Hello, I recently switched from rc7 to 1.0.4 and lazy loading seem to happen any more. Can someone please check my config out. 1.0.4 fires twice as much queries? thanks. sql output get all organisations 1.0.4 just after clear cache [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.fax, A0.fieldofinterest, A0.name,A0.noofemployee,A0.phone,A0.postaladress, A0.postalcity,A0.postalzip,A0.url,A0.visitadress,A0.visitcity, A0.visitzip, A0.chamberofcommerceno,A0.immediateparentid,A0.ultimateparentid, A0.postalcountryid ,A0.organisationbrancheid,A0.visitcountryid, A0.organisationtypeid FROM organisation A0 [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id ,A0.lastmodified,A0.creationdate,A0.version,A0.code, A0.name, A0.number FROM country A0 WHERE A0.id = ? [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl ] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version, A0.defaultvalue, A0.fixheader,A0.groupby,A0.indescriptor,A0.name,A0.subtablesheight , A0.descriptorfieldid,A0.defaultqueryid,A0.quicksearchqueryid FROM tablemodel A0 WHERE A0.name = ? [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version, A0.defaultvalue, A0.indescriptor,A0.name,A0.ordr,A0.showintable,A0.sortdown, A0.fieldtypeid , A0.fieldcollectionid,A0.parenttablemodelid,A0.calculatedfieldid FROM field A0 WHERE A0.id = ? [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.name, A0.typeFROM fieldtype A0 WHERE A0.id = ? [
lazy loading 1.0.4
Hello, I recently switched from rc7 to 1.0.4 and lazy loading seem to happen any more. Can someone please check my config out. 1.0.4 fires twice as much queries? thanks. sql output get all organisations 1.0.4 just after clear cache [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.fax, A0.fieldofinterest,A0.name,A0.noofemployee,A0.phone,A0.postaladress, A0.postalcity,A0.postalzip,A0.url,A0.visitadress,A0.visitcity,A0.visitzip, A0.chamberofcommerceno,A0.immediateparentid,A0.ultimateparentid, A0.postalcountryid,A0.organisationbrancheid,A0.visitcountryid, A0.organisationtypeid FROM organisation A0 [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.code,A0.name, A0.number FROM country A0 WHERE A0.id = ? [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.defaultvalue, A0.fixheader,A0.groupby,A0.indescriptor,A0.name,A0.subtablesheight, A0.descriptorfieldid,A0.defaultqueryid,A0.quicksearchqueryid FROM tablemodel A0 WHERE A0.name = ? [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.defaultvalue, A0.indescriptor,A0.name,A0.ordr,A0.showintable,A0.sortdown,A0.fieldtypeid, A0.fieldcollectionid,A0.parenttablemodelid,A0.calculatedfieldid FROM field A0 WHERE A0.id = ? [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.name,A0.typeFROM fieldtype A0 WHERE A0.id = ? [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.defaultvalue, A0.name,A0.ordr,A0.property,A0.selectionpath,A0.showintable, A0.parentcollectionmodelid,A0.innerselectid,A0.parenttablemodelid, A0.rendertypeid,A0.entityid FROM reference A0 WHERE A0.parenttablemodelid = ? [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.name, A0.referenceid FROM rendertype A0 WHERE A0.id = ? [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.defaultvalue, A0.fixheader,A0.groupby,A0.indescriptor,A0.name,A0.subtablesheight, A0.descriptorfieldid,A0.defaultqueryid,A0.quicksearchqueryid FROM tablemodel A0 WHERE A0.id IN (?,?,?,?) [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.defaultvalue, A0.indescriptor,A0.name,A0.ordr,A0.showintable,A0.sortdown,A0.fieldtypeid, A0.fieldcollectionid,A0.parenttablemodelid,A0.calculatedfieldid FROM field A0 WHERE A0.id IN (?,?) [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.name,A0.typeFROM fieldtype A0 WHERE A0.id = ? [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.defaultvalue, A0.indescriptor,A0.name,A0.ordr,A0.showintable,A0.sortdown,A0.fieldtypeid, A0.fieldcollectionid,A0.parenttablemodelid,A0.calculatedfieldid FROM field A0 WHERE A0.parenttablemodelid = ? [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.name,A0.typeFROM fieldtype A0 WHERE A0.id IN (?,?,?) [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.defaultvalue, A0.fixheader,A0.groupby,A0.indescriptor,A0.name,A0.subtablesheight, A0.descriptorfieldid,A0.defaultqueryid,A0.quicksearchqueryid FROM tablemodel A0 WHERE A0.id = ? second time [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.fax, A0.fieldofinterest,A0.name,A0.noofemployee,A0.phone,A0.postaladress, A0.postalcity,A0.postalzip,A0.url,A0.visitadress,A0.visitcity,A0.visitzip, A0.chamberofcommerceno,A0.immediateparentid,A0.ultimateparentid, A0.postalcountryid,A0.organisationbrancheid,A0.visitcountryid, A0.organisationtypeid FROM organisation A0 [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.id,A0.lastmodified,A0.creationdate,A0.version,A0.code,A0.name, A0.number FROM country A0 WHERE A0.id = ? sql output get all organisations rc7 just after clear cache [org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl] DEBUG: SQL:SELECT A0.organisationbrancheid,A0.ultimateparentid,A0.phone, A0.immediateparentid,A0.visitcountryid,A0.visitzip,A0.postalzip,A0.visitcity ,A0.visitadress,A0.postaladress,A0.fax,A0.id,A0.version,A0.postalcountryid, A0.postalcity,A0.chamberofcommerceno,A0.organisationtypeid,A0.url,
