Java Doc for OQLOrOnForeignKeyTest.java in  » Database-ORM » db-ojb » org » apache » ojb » odmg » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database ORM » db ojb » org.apache.ojb.odmg   Source Cross Reference   Class Diagram   Java Document (Java Doc)   org.apache.ojb.junit.ODMGTestCase    org.apache.ojb.odmg.OQLOrOnForeignKeyTest OQLOrOnForeignKeyTest public class OQLOrOnForeignKeyTest extends ODMGTestCase (Code) author:    Matthew.Baird author:    Illustrates a problem with OJB SQL Generation: author:    1. OJB will generate the following SQL when items are mapped to the same table: author:    SELECT A0.FATHER_ID,A0.MOTHER_ID,A0.LASTNAME,A0.FIRSTNAME,A0.ID author:    FROM FAMILY_MEMBER A0 author:    INNER JOIN FAMILY_MEMBER A2 ON A0.FATHER_ID=A2.ID author:    INNER JOIN FAMILY_MEMBER A1 ON A0.MOTHER_ID=A1.ID author:    WHERE A1.ID = ? OR (A2.ID = ? ) author:    When it should generate: author:    SELECT A0.FATHER_ID,A0.MOTHER_ID,A0.LASTNAME,A0.FIRSTNAME,A0.ID author:    FROM FAMILY_MEMBER A0 author:    WHERE A0.FATHER_ID = ? OR (A0.MOTHER_ID = ? ) author:    or: author:    SELECT A0.FATHER_ID,A0.MOTHER_ID,A0.LASTNAME,A0.FIRSTNAME,A0.ID author:    FROM FAMILY_MEMBER A0 author:    LEFT OUTER JOIN FAMILY_MEMBER A1 ON A0.MOTHER_ID=A1.ID author:    LEFT OUTER JOIN FAMILY_MEMBER A2 ON A0.FATHER_ID=A2.ID author:    WHERE A1.ID = ? OR (A2.ID = ?) Constructor Summary public   OQLOrOnForeignKeyTest(String name)      Method Summary public static  void main(String[] args)      public  void testOrReferenceOnDifferentTables()      public  void testOrReferenceOnSameTable()      Constructor Detail OQLOrOnForeignKeyTest public OQLOrOnForeignKeyTest(String name)(Code) Method Detail main public static void main(String[] args)(Code) testOrReferenceOnDifferentTables public void testOrReferenceOnDifferentTables() throws Exception(Code) testOrReferenceOnSameTable public void testOrReferenceOnSameTable() throws Exception(Code) test joins on same table throws:   Exception - Fields inherited from org.apache.ojb.junit.ODMGTestCase public Database database(Code)(Java Doc) public ImplementationExt odmg(Code)(Java Doc) Methods inherited from org.apache.ojb.junit.ODMGTestCase protected void setUp() throws Exception(Code)(Java Doc) protected void tearDown() throws Exception(Code)(Java Doc)