Package org.apache.cayenne.exp

Examples of org.apache.cayenne.exp.Expression

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        query.setParameters(map);
        context.performNonSelectingQuery(query);

        // fetch updated artist into the new context, and see if the original
        // one gets updated
        Expression qual = ExpressionFactory.matchExp("artistName", newName);
        List artists = altContext.performQuery(new SelectQuery(Artist.class, qual));
        assertEquals(1, artists.size());
        Artist altArtist = (Artist) artists.get(0);

        // check underlying cache
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        map.put("oldName", originalName);
        update.setParameters(map);
        context.performNonSelectingQuery(update);

        // fetch updated artist without refreshing
        Expression qual = ExpressionFactory.matchExp("artistName", newName);
        SelectQuery query = new SelectQuery(Artist.class, qual);
        List artists = context.performQuery(query);
        assertEquals(1, artists.size());
        artist = (Artist) artists.get(0);
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        // check that is was merged
        assertTokensAndExecute(node, map, 0, 0);

        // check values for null
        Expression qual = ExpressionFactory.matchExp(
                objAttr.getName(),
                DEFAULT_VALUE_STRING);
        SelectQuery query = new SelectQuery("Painting", qual);
        List<Persistent> rows = ctxt.performQuery(query);
        assertEquals(nrows, rows.size());
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    }

    public void testRelationshipWhereClause2() throws Exception {
        ObjectContext context = createDataContext();

        Expression exp = ExpressionFactory.matchExp(Painting.TO_GALLERY_PROPERTY, null);
        EJBQLQuery query = new EJBQLQuery("select p.toArtist from Painting p where " + exp.toEJBQL("p"));

        context.performQuery(query);
    }
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    public void testSetQualifier() {
        QualifiedQuery query = new MockQualifiedQuery();
        assertNull(query.getQualifier());

        Expression qual = ExpressionFactory.expressionOfType(Expression.AND);
        query.setQualifier(qual);
        assertNotNull(query.getQualifier());
        assertSame(qual, query.getQualifier());
    }
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    public void testAndQualifier() {
        QualifiedQuery query = new MockQualifiedQuery();
        assertNull(query.getQualifier());

        Expression e1 = ExpressionFactory.expressionOfType(Expression.EQUAL_TO);
        query.andQualifier(e1);
        assertSame(e1, query.getQualifier());

        Expression e2 = ExpressionFactory.expressionOfType(Expression.NOT_EQUAL_TO);
        query.andQualifier(e2);
        assertEquals(Expression.AND, query.getQualifier().getType());
    }
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    public void testOrQualifier() {
        QualifiedQuery query = new MockQualifiedQuery();
        assertNull(query.getQualifier());

        Expression e1 = ExpressionFactory.expressionOfType(Expression.EQUAL_TO);
        query.orQualifier(e1);
        assertSame(e1, query.getQualifier());

        Expression e2 = ExpressionFactory.expressionOfType(Expression.NOT_EQUAL_TO);
        query.orQualifier(e2);
        assertEquals(Expression.OR, query.getQualifier().getType());
    }
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            jointRoot = jointRoot.getParent();
        }

        final String prefix;
        if (jointRoot != this) {
            Expression objectPath = Expression.fromString(getPath(jointRoot));
            ASTPath translated = (ASTPath) ((PrefetchProcessorNode) jointRoot)
                    .getResolver()
                    .getEntity()
                    .translateToDbPath(objectPath);
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     *
     * @since 3.0
     */
    public Map<?, ?> getFreshSnapshot(ObjectContext context) {

        Expression qualifier = null;
        for (DbAttribute attribute : rootEntity.getPrimaryKeys()) {
            Expression attributeQualifier = ExpressionFactory.matchDbExp(attribute
                    .getName(), qualifierSnapshot.get(attribute.getName()));

            qualifier = (qualifier != null)
                    ? qualifier.andExp(attributeQualifier)
                    : attributeQualifier;
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    }

    public void testIndexOf() throws Exception {
        prepareList(6);

        Expression qual = ExpressionFactory.matchExp(
                ClientMtTable1.GLOBAL_ATTRIBUTE1_PROPERTY,
                "g20");
        SelectQuery query = new SelectQuery(ClientMtTable1.class, qual);
        List artists = list.context.performQuery(query);
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