Package org.apache.openjpa.jdbc.meta

Examples of org.apache.openjpa.jdbc.meta.Discriminator

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        assertNotNull(vers);
        assertEquals("MAPPINGTEST1", vers.getColumns()[0].getTable().
            getName().toUpperCase());
        assertEquals(Types.INTEGER, vers.getColumns()[0].getType());

        Discriminator cls = _mapping.getDiscriminator();
        assertNotNull(cls);
        assertEquals("MAPPINGTEST1", cls.getColumns()[0].getTable().
            getName().toUpperCase());
        assertEquals(Types.VARCHAR, cls.getColumns()[0].getType());
    }
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        }
        if (sup == null) {
            Version vers = mapping.getVersion();
            if (!bufferCustomInsert(vers, sm, store, customs))
                vers.insert(sm, store, rowMgr);
            Discriminator dsc = mapping.getDiscriminator();
            if (!bufferCustomInsert(dsc, sm, store, customs))
                dsc.insert(sm, store, rowMgr);
        }
    }
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        ClassMapping sup = mapping.getJoinablePCSuperclassMapping();
        if (sup == null) {
            Version vers = mapping.getVersion();
            if (!bufferCustomDelete(vers, sm, store, customs))
                vers.delete(sm, store, rowMgr);
            Discriminator dsc = mapping.getDiscriminator();
            if (!bufferCustomDelete(dsc, sm, store, customs))
                dsc.delete(sm, store, rowMgr);
        }
        mapping.delete(sm, store, rowMgr);

        if (sup != null)
            delete(sm, sup, rowMgr, store, customs);
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            // if we are only updating the version column, we need to add
            // in the primary key select
            mapping.update(sm, store, rowMgr);
        } else {
            // otherwise we need to make sure we update the discriminator too
            Discriminator dsc = mapping.getDiscriminator();
            if (!bufferCustomUpdate(dsc, sm, store, customs))
                dsc.update(sm, store, rowMgr);
        }
    }
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        assertEquals(1, _mapping.getPrimaryKeyColumns().length);
        assertEquals("OID", _mapping.getPrimaryKeyColumns()[0].getName());
    }

    public void testDiscriminator() {
        Discriminator disc = _mapping.getDiscriminator();
        assertTrue(disc.getStrategy() instanceof
            ClassNameDiscriminatorStrategy);
        assertEquals(1, disc.getColumns().length);
        assertEquals("DISCRIM", disc.getColumns()[0].getName());
    }
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        } else
            rel = relMapping.getDescribedType();

        // if the path represents a relation, get its class indicator and
        // make sure it's joined down to its base type
        Discriminator discrim = (relMapping == null
            || !relMapping.getDescribedType().isAssignableFrom(_cls))
            ? null : relMapping.getDiscriminator();
        ClassMapping mapping = null;
        Joins joins = pathState.joins;
        if (discrim != null) {
            // cache mapping for cast
            MappingRepository repos = ctx.store.getConfiguration().
                getMappingRepositoryInstance();
            mapping = repos.getMapping(_cls, ctx.store.getContext().
                getClassLoader(), false);

            // if not looking for a PC, don't bother with indicator
            if (mapping == null || !discrim.hasClassConditions(mapping, true))
                discrim = null;
            else {
                ClassMapping owner = discrim.getClassMapping();
                ClassMapping from, to;
                if (relMapping.getDescribedType().isAssignableFrom
                    (owner.getDescribedType())) {
                    from = owner;
                    to = relMapping;
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            fail("Exception querying DTYPE column: " + e.getMessage());
        }       
       
        // Check the discriminator column of the class mapping. 
        ClassMapping cm = getMapping(baseClass);
        Discriminator d = cm.getDiscriminator();
        Column[] cols = d.getColumns();
        assertTrue("Discriminator should use DTYPE column",
            (cols != null && cols.length == 1 &&
            cols[0].getName().equals("DTYPE")));
    }
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    }

    public void testCharDiscriminators() {
        EntityManager em = emf.createEntityManager(); // load types

        Discriminator discrim = getMapping("CharAbstractEntity")
                .getDiscriminator();
        assertEquals(new Character('C'), discrim.getValue()); // Generated
        assertEquals(JavaTypes.CHAR, discrim.getJavaType());

        discrim = getMapping("chrLeaf").getDiscriminator();
        assertEquals(new Character('c'), discrim.getValue());
        assertEquals(JavaTypes.CHAR, discrim.getJavaType());

        discrim = getMapping("CharRootEntity").getDiscriminator();
        assertEquals(new Character('R'), discrim.getValue());
        assertEquals(JavaTypes.CHAR, discrim.getJavaType());
       
        CharLeafEntity leaf = new CharLeafEntity();
        CharRootEntity root = new CharRootEntity();
        em.getTransaction().begin();
        em.persist(leaf);
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    }

    public void testIntDiscriminators() {
        EntityManager em = emf.createEntityManager(); // load the types

        Discriminator discrim = getMapping("IntegerAbstractEntity")
                .getDiscriminator();
        assertEquals(new Integer("IntegerAbstractEntity".hashCode()), discrim
                .getValue()); // Generated value
        assertEquals(JavaTypes.INT, discrim.getJavaType());

        discrim = getMapping("intLeaf").getDiscriminator();
        assertEquals(new Integer("intLeaf".hashCode()), discrim.getValue());
        assertEquals(JavaTypes.INT, discrim.getJavaType());

        discrim = getMapping("IntegerRootEntity").getDiscriminator();
        assertEquals(new Integer(10101), discrim.getValue());
        assertEquals(JavaTypes.INT, discrim.getJavaType());

        IntegerLeafEntity leaf = new IntegerLeafEntity();
        IntegerRootEntity root = new IntegerRootEntity();
        em.getTransaction().begin();
        em.persist(leaf);
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        em.close();
    }

    public void testStringDiscriminators() {
        EntityManager em = emf.createEntityManager(); // load the types
        Discriminator discrim = getMapping("StringAbstractEntity")
                .getDiscriminator();
        assertEquals("StringAbstractEntity", discrim.getValue()); // Generated
        assertEquals(JavaTypes.STRING, discrim.getJavaType());

        discrim = getMapping("strLeaf").getDiscriminator();
        assertEquals("strLeaf", discrim.getValue());
        assertEquals(JavaTypes.STRING, discrim.getJavaType());

        discrim = getMapping("StringRootEntity").getDiscriminator();
        assertEquals("StringRoot", discrim.getValue());
        assertEquals(JavaTypes.STRING, discrim.getJavaType());
       
        StringLeafEntity leaf = new StringLeafEntity();
        StringRootEntity root = new StringRootEntity();
        em.getTransaction().begin();
        em.persist(leaf);
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Related Classes of org.apache.openjpa.jdbc.meta.Discriminator

  • org.apache.openjpa.jdbc.kernel.AbstractUpdateManager
  • org.apache.openjpa.jdbc.kernel.exps.InstanceofExpression
  • org.apache.openjpa.jdbc.kernel.exps.JDBCExpressionFactory
  • org.apache.openjpa.jdbc.kernel.exps.PCPath
  • org.apache.openjpa.jdbc.kernel.JDBCStoreManager
  • org.apache.openjpa.jdbc.kernel.JDBCStoreQuery
  • org.apache.openjpa.jdbc.schema.ColumnIO
  • org.apache.openjpa.lib.log.Log
  • org.apache.openjpa.persistence.discriminator.TestDiscriminatorTypes
  • org.apache.openjpa.persistence.inheritance.TestDefaultInheritanceStrategy
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