# please one more question **Category:** [Implementers (archive)](https://discourse.openehr.org/c/implementers-archive/158) **Created:** 2006-08-03 15:58 UTC **Views:** 9 **Replies:** 2 **URL:** https://discourse.openehr.org/t/please-one-more-question/14565 --- ## Post #1 by @system Hi, I am getting good along with the java\-tests and really start to understand\. I understand java\-code better then documentation, I noticed\. I have one thing found which I don't understand, if it is to long to explain, please point me to the docs where I can find the answer\. It is in the Java\-code, in the testfile: ChildPatientV1Test\.Java\. It is doing tests with archetype openEHR\-demographic\-PERSON\.child\_patient\.v1 It is inserting data and building RMObjects\. If there an error occurs, it can be found in the Map ErrorMap\. This is very good, I get errors like /\[at0000\]/contacts\[at0021\]/addresses\[at0022\]/details\[at0023\]/representation\[at0024\]/items\[at0025\.2\]/value/=MISSING \(a value which has no cardinality\-\-indication is missing, which, I found out, there must exist a default cardinality, I don't know what it is, I guess 1\.\.1, I will look in the document later for this\) So I understand why I get them\. Sorry to say, I find the ADL\-document the most difficult to read, and in this way I understand how it works\. Learning "ADL by Example" The testfiles Rong wrote are very good to get grip on the mechanisms But there is one thing I do not understand\. These values are inserted "t7child firstname", "child lastname", "19801020\-0000", "08\-324703", "p1 firstname", "p1 lastname", null, null, null, null, null, null, null, null This gives this error /\[at0000\]/contacts\[at0013\]/addresses\[at0014\]/details\[at0015\]/representation\[at0016\]/items\[at0018\]/value/value=MISSING definition   PERSON\[at0000\] matches \{       \-\-skip these, not important for this error         contacts cardinality matches \{0\.\.\*; unordered; unique\} matches \{             CONTACT\[at0008\] matches \{      \-\-skip the content             \}             CONTACT\[at0013\] matches \{      \-\-skip these, not important for my question             \}             CONTACT\[at0021\] occurrences matches \{0\.\.1\} matches \{     \-\-skip these, not important for my question      \}   \} As I understand this, there is a PERSON which has things in the first line of inserts, no problem with that This person has two contacts\. The third line of the inserts is the second contact, which is 0\.\.1 \(optional\) so only null are inserted, which is OK\. The second line of inserts gives the error, at 0013 \(which is the second contact\. I understand the error, the first null \(third value\) should contain a string, but now my question --- ## Post #2 by @rong.chen Bert Verhees wrote: > Hi, I am getting good along with the java\-tests and really start to understand\. I understand java\-code better then documentation, I noticed\. > > I have one thing found which I don't understand, if it is to long to explain, please point me to the docs where I can find the answer\. > > It is in the Java\-code, in the testfile: ChildPatientV1Test\.Java\. > > It is doing tests with archetype openEHR\-demographic\-PERSON\.child\_patient\.v1 > > It is inserting data and building RMObjects\. > If there an error occurs, it can be found in the Map ErrorMap\. > > This is very good, I get errors like > /\[at0000\]/contacts\[at0021\]/addresses\[at0022\]/details\[at0023\]/representation\[at0024\]/items\[at0025\.2\]/value/=MISSING > > \(a value which has no cardinality\-\-indication is missing, which, I found out, there must exist a default cardinality, I don't know what it is, I guess 1\.\.1, I will look in the document later for this\) > > So I understand why I get them\. Sorry to say, I find the ADL\-document the most difficult to read, and in this way I understand how it works\. Learning "ADL by Example" > > The testfiles Rong wrote are very good to get grip on the mechanisms > > But there is one thing I do not understand\. > > These values are inserted > > "t7child firstname", "child lastname", "19801020\-0000", "08\-324703", > "p1 firstname", "p1 lastname", null, null, null, > null, null, null, null, null > > This gives this error > /\[at0000\]/contacts\[at0013\]/addresses\[at0014\]/details\[at0015\]/representation\[at0016\]/items\[at0018\]/value/value=MISSING > > definition >   PERSON\[at0000\] matches \{ >       \-\-skip these, not important for this error >         contacts cardinality matches \{0\.\.\*; unordered; unique\} matches \{ >             CONTACT\[at0008\] matches \{ >      \-\-skip the content >             \} >             CONTACT\[at0013\] matches \{ \-\-skip these, not important for my question >             \} >             CONTACT\[at0021\] occurrences matches \{0\.\.1\} matches \{ >     \-\-skip these, not important for my question >      \} >   \} > > As I understand this, there is a PERSON which has things in the first line of inserts, no problem with that > This person has two contacts\. The third line of the inserts is the second contact, which is 0\.\.1 \(optional\) so only null are inserted, which is OK\. > The second line of inserts gives the error, at 0013 \(which is the second contact\. I understand the error, the first null \(third value\) should contain a string, but now my question > \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- > Why is the first contact in the archetype never used \[at0008\] > I am sequentially inserting values \(with buildRMObject\), why is the first CONTACT \[at0008\] skipped\. >   Hi Bert, Contact \[at0008\] is a required node, therefore if the entry value is missing the RMObjectBuilder will complain\. It is not skipped in the test code\. In your example entries, "08\-324703" is just for that node creation\. If you replace that value with null, you will get two errors instead of one\. Regards, Rong --- ## Post #3 by @system > > CONTACT \[at0008\] skipped\. > > Hi Bert, > > Contact \[at0008\] is a required node, therefore if the entry value is > missing the RMObjectBuilder will complain\. It is not skipped in the test > code\. In your example entries, "08\-324703" is just for that node > creation\. If you replace that value with null, you will get two errors > instead of one\. Hi Rong, thanks for your answer\. You are right, case solved\. Bert --- **Canonical:** https://discourse.openehr.org/t/please-one-more-question/14565 **Original content:** https://discourse.openehr.org/t/please-one-more-question/14565