Examples with QueryOrder siena.QueryOrder used on opensource projects

Example 1 with QueryOrder

use of siena.QueryOrder in project siena by mandubian.

the class SdbMappingUtils method buildFilterOrder.

public static <T> StringBuilder buildFilterOrder(Query<T> query, StringBuilder q) {
    List<QueryFilter> filters = query.getFilters();
    Set<Field> filteredFields = new HashSet<Field>();
    boolean first = true;
    if (!filters.isEmpty()) {
        q.append(WHERE);
        for (QueryFilter filter : filters) {
            if (QueryFilterSimple.class.isAssignableFrom(filter.getClass())) {
                QueryFilterSimple qf = (QueryFilterSimple) filter;
                Field f = qf.field;
                Object value = qf.value;
                String op = qf.operator;
                // for order verification in case the order is not on a filtered field
                filteredFields.add(f);
                if (!first) {
                    q.append(AND);
                }
                first = false;
                String[] columns = ClassInfo.getColumnNames(f);
                if ("IN".equals(op)) {
                    if (!Collection.class.isAssignableFrom(value.getClass()))
                        throw new SienaException("Collection needed when using IN operator in filter() query");
                    StringBuilder s = new StringBuilder();
                    Collection<?> col = (Collection<?>) value;
                    for (Object object : col) {
                        // TO BE VERIFIED: SHOULD BE MANAGED by toString!!!
                        if (object != null) {
                            s.append("," + SimpleDB.quote(toString(f, object)));
                        } else {
                            throw new SienaException("Can't use NULL in collection for IN operator");
                        }
                    }
                    String column = null;
                    if (ClassInfo.isId(f)) {
                        column = ITEM_NAME;
                    } else {
                        column = ClassInfo.getColumnNames(f)[0];
                    }
                    q.append(column + " in(" + s.toString().substring(1) + ")");
                } else if (ClassInfo.isModel(f.getType())) {
                    // TODO could manage other ops here
                    if (!op.equals("=")) {
                        throw new SienaException("Unsupported operator for relationship: " + op);
                    }
                    ClassInfo relInfo = ClassInfo.getClassInfo(f.getType());
                    int i = 0;
                    for (Field key : relInfo.keys) {
                        if (value == null) {
                            q.append(columns[i++] + IS_NULL);
                        } else {
                            q.append(columns[i++] + op + SimpleDB.quote(objectFieldToString(value, key)));
                        }
                    }
                } else {
                    String column = null;
                    if (ClassInfo.isId(f)) {
                        column = "itemName()";
                        if (value == null && op.equals("=")) {
                            throw new SienaException("SDB filter on @Id field with 'IS NULL' is not possible");
                        }
                    } else {
                        column = ClassInfo.getColumnNames(f)[0];
                    }
                    if (value == null && op.equals("=")) {
                        q.append(column + IS_NULL);
                    } else if (value == null && op.equals("!=")) {
                        q.append(column + IS_NOT_NULL);
                    } else {
                        q.append(column + op + SimpleDB.quote(toString(f, value)));
                    }
                }
            } else if (QueryFilterSearch.class.isAssignableFrom(filter.getClass())) {
                Class<T> clazz = query.getQueriedClass();
                QueryFilterSearch qf = (QueryFilterSearch) filter;
                //	throw new SienaException("Search not possible for several fields in SDB: only one field");
                try {
                    //Field field = Util.getField(clazz, qf.fields[0]);
                    //if(field.isAnnotationPresent(Unindexed.class)){
                    //	throw new SienaException("Cannot search the @Unindexed field "+field.getName());
                    //}
                    // cuts match into words
                    String[] words = qf.match.split("\\s");
                    // if several words, then only OR operator represented by IN GAE
                    Pattern pNormal = Pattern.compile("[\\%]*(\\w+)[\\%]*");
                    if (!first) {
                        q.append(AND);
                    }
                    // forces true
                    first = true;
                    q.append(" ( ");
                    for (String f : qf.fields) {
                        Field field = Util.getField(clazz, f);
                        if (!first) {
                            q.append(OR);
                        }
                        first = false;
                        q.append(" ( ");
                        String column = null;
                        if (ClassInfo.isId(field)) {
                            column = "itemName()";
                        } else {
                            column = ClassInfo.getColumnNames(field)[0];
                        }
                        first = true;
                        for (String word : words) {
                            if (!first) {
                                q.append(OR);
                            }
                            first = false;
                            if (!pNormal.matcher(word).matches()) {
                                throw new SienaException("'" + word + "' doesn't match pattern [\\%]*(\\w+)[\\%]*");
                            }
                            if (word.contains("%")) {
                                q.append(column + LIKE + SimpleDB.quote(word));
                            } else {
                                q.append(column + EQ + SimpleDB.quote(word));
                            }
                        }
                        q.append(" ) ");
                    }
                    q.append(" ) ");
                } catch (Exception e) {
                    throw new SienaException(e);
                }
            }
        }
    }
    List<QueryOrder> orders = query.getOrders();
    if (!orders.isEmpty()) {
        QueryOrder last = orders.get(orders.size() - 1);
        Field field = last.field;
        if (ClassInfo.isId(field)) {
            if (!filteredFields.contains(field)) {
                if (filters.isEmpty()) {
                    q.append(WHERE);
                } else {
                    q.append(AND);
                }
                q.append(ITEM_NAME + IS_NOT_NULL);
            }
            q.append(ORDER_BY + ITEM_NAME);
        } else {
            String column = ClassInfo.getColumnNames(field)[0];
            if (!filteredFields.contains(field)) {
                if (filters.isEmpty()) {
                    q.append(WHERE);
                } else {
                    q.append(AND);
                }
                q.append(column + IS_NOT_NULL);
            }
            q.append(ORDER_BY + column);
        }
        if (!last.ascending)
            q.append(DESC);
    }
    QueryOptionSdbContext sdbCtx = (QueryOptionSdbContext) query.option(QueryOptionSdbContext.ID);
    QueryOptionOffset off = (QueryOptionOffset) query.option(QueryOptionOffset.ID);
    if (sdbCtx != null && sdbCtx.realPageSize != 0) {
        if (off != null && off.isActive()) {
            // if offset is active, adds it to the page size to be sure to retrieve enough elements
            q.append(LIMIT + (sdbCtx.realPageSize + off.offset));
        } else {
            q.append(LIMIT + sdbCtx.realPageSize);
        }
    }
    return q;
}

Example 2 with QueryOrder

use of siena.QueryOrder in project siena by mandubian.

the class GaeQueryUtils method addFiltersOrders.

public static <T> com.google.appengine.api.datastore.Query addFiltersOrders(QueryData<T> query, com.google.appengine.api.datastore.Query q, Key parentKey) {
    List<QueryFilter> filters = query.getFilters();
    for (QueryFilter filter : filters) {
        if (QueryFilterSimple.class.isAssignableFrom(filter.getClass())) {
            QueryFilterSimple qf = (QueryFilterSimple) filter;
            Field f = qf.field;
            String propertyName = ClassInfo.getColumnNames(f)[0];
            Object value = qf.value;
            FilterOperator op = operators.get(qf.operator);
            // IN and NOT_EQUAL doesn't allow to use cursors
            if (op == FilterOperator.IN || op == FilterOperator.NOT_EQUAL) {
                QueryOptionGaeContext gaeCtx = (QueryOptionGaeContext) query.option(QueryOptionGaeContext.ID);
                if (gaeCtx == null) {
                    gaeCtx = new QueryOptionGaeContext();
                    query.options().put(gaeCtx.type, gaeCtx);
                }
                gaeCtx.useCursor = false;
                query.option(QueryOptionOffset.ID).activate();
            }
            if (value != null && ClassInfo.isModel(value.getClass())) {
                Key key = GaeMappingUtils.getKey(value);
                q.addFilter(propertyName, op, key);
            } else {
                if (ClassInfo.isId(f)) {
                    Id id = f.getAnnotation(Id.class);
                    switch(id.value()) {
                        case NONE:
                            if (value != null) {
                                if (!Collection.class.isAssignableFrom(value.getClass())) {
                                    // long or string goes toString
                                    Key key;
                                    if (parentKey == null) {
                                        key = KeyFactory.createKey(q.getKind(), value.toString());
                                    } else {
                                        key = KeyFactory.createKey(parentKey, q.getKind(), value.toString());
                                    }
                                    q.addFilter(Entity.KEY_RESERVED_PROPERTY, op, key);
                                } else {
                                    List<Key> keys = new ArrayList<Key>();
                                    for (Object val : (Collection<?>) value) {
                                        if (parentKey == null) {
                                            keys.add(KeyFactory.createKey(q.getKind(), val.toString()));
                                        } else {
                                            keys.add(KeyFactory.createKey(parentKey, q.getKind(), val.toString()));
                                        }
                                    }
                                    q.addFilter(Entity.KEY_RESERVED_PROPERTY, op, keys);
                                }
                            }
                            break;
                        case AUTO_INCREMENT:
                            if (value != null) {
                                if (!Collection.class.isAssignableFrom(value.getClass())) {
                                    Key key;
                                    Class<?> type = f.getType();
                                    if (Long.TYPE == type || Long.class.isAssignableFrom(type)) {
                                        if (parentKey == null) {
                                            key = KeyFactory.createKey(q.getKind(), (Long) value);
                                        } else {
                                            key = KeyFactory.createKey(parentKey, q.getKind(), (Long) value);
                                        }
                                    } else {
                                        if (parentKey == null) {
                                            key = KeyFactory.createKey(q.getKind(), value.toString());
                                        } else {
                                            key = KeyFactory.createKey(parentKey, q.getKind(), value.toString());
                                        }
                                    }
                                    q.addFilter(Entity.KEY_RESERVED_PROPERTY, op, key);
                                } else {
                                    List<Key> keys = new ArrayList<Key>();
                                    for (Object val : (Collection<?>) value) {
                                        if (value instanceof String)
                                            val = Long.parseLong((String) val);
                                        if (parentKey == null) {
                                            keys.add(KeyFactory.createKey(q.getKind(), (Long) val));
                                        } else {
                                            keys.add(KeyFactory.createKey(parentKey, q.getKind(), (Long) val));
                                        }
                                    }
                                    q.addFilter(Entity.KEY_RESERVED_PROPERTY, op, keys);
                                }
                            }
                            break;
                        case UUID:
                            if (value != null) {
                                if (!Collection.class.isAssignableFrom(value.getClass())) {
                                    // long or string goes toString
                                    Key key;
                                    if (parentKey == null) {
                                        key = KeyFactory.createKey(q.getKind(), value.toString());
                                    } else {
                                        key = KeyFactory.createKey(parentKey, q.getKind(), value.toString());
                                    }
                                    q.addFilter(Entity.KEY_RESERVED_PROPERTY, op, key);
                                } else {
                                    List<Key> keys = new ArrayList<Key>();
                                    for (Object val : (Collection<?>) value) {
                                        keys.add(KeyFactory.createKey(q.getKind(), val.toString()));
                                    }
                                    q.addFilter(Entity.KEY_RESERVED_PROPERTY, op, keys);
                                }
                            }
                            break;
                        default:
                            throw new SienaException("Id Generator " + id.value() + " not supported");
                    }
                } else if (Enum.class.isAssignableFrom(f.getType())) {
                    value = value.toString();
                    q.addFilter(propertyName, op, value);
                } else {
                    q.addFilter(propertyName, op, value);
                }
            }
        } else if (QueryFilterSearch.class.isAssignableFrom(filter.getClass())) {
            Class<T> clazz = query.getQueriedClass();
            QueryFilterSearch qf = (QueryFilterSearch) filter;
            if (qf.fields.length > 1)
                throw new SienaException("Search not possible for several fields in GAE: only one field");
            try {
                Field field = Util.getField(clazz, qf.fields[0]);
                if (field.isAnnotationPresent(Unindexed.class)) {
                    throw new SienaException("Cannot search the @Unindexed field " + field.getName());
                }
                // cuts match into words
                String[] words = qf.match.split("\\s");
                // if several words, then only OR operator represented by IN GAE
                Pattern pNormal = Pattern.compile("[^\\*](\\w+)[^\\*]");
                if (words.length > 1) {
                    for (String word : words) {
                        if (!pNormal.matcher(word).matches()) {
                            throw new SienaException("Cannot do a multiwords search with the * operator");
                        }
                    }
                    List<String> wordList = new ArrayList<String>();
                    Collections.addAll(wordList, words);
                    addSearchFilterIn(q, field, wordList);
                } else {
                    // searches for pattern such as "alpha*" or "*alpha" or "alpha"
                    Pattern pStart = Pattern.compile("(\\w+)\\*");
                    String word = words[0];
                    Matcher matcher = pStart.matcher(word);
                    if (matcher.matches()) {
                        String realWord = matcher.group(1);
                        addSearchFilterBeginsWith(q, field, realWord);
                        continue;
                    }
                    matcher = pNormal.matcher(word);
                    if (matcher.matches()) {
                        addSearchFilterEquals(q, field, word);
                        continue;
                    }
                    Pattern pEnd = Pattern.compile("\\*(\\w+)");
                    matcher = pEnd.matcher(word);
                    if (matcher.matches()) {
                        throw new SienaException("Cannot do a \"*word\" search in GAE");
                    }
                }
            } catch (Exception e) {
                throw new SienaException(e);
            }
            break;
        } else if (QueryFilterEmbedded.class.isAssignableFrom(filter.getClass())) {
            QueryFilterEmbedded qf = (QueryFilterEmbedded) filter;
            String propName = "";
            int sz = qf.fields.size();
            for (int i = 0; i < sz; i++) {
                propName += ClassInfo.getSingleColumnName(qf.fields.get(i));
                if (i < sz - 1) {
                    propName += qf.fieldSeparator;
                }
            }
            Object value = qf.value;
            FilterOperator op = operators.get(qf.operator);
            // IN and NOT_EQUAL doesn't allow to use cursors
            if (op == FilterOperator.IN || op == FilterOperator.NOT_EQUAL) {
                QueryOptionGaeContext gaeCtx = (QueryOptionGaeContext) query.option(QueryOptionGaeContext.ID);
                if (gaeCtx == null) {
                    gaeCtx = new QueryOptionGaeContext();
                    query.options().put(gaeCtx.type, gaeCtx);
                }
                gaeCtx.useCursor = false;
                query.option(QueryOptionOffset.ID).activate();
            }
            q.addFilter(propName, op, value);
        }
    }
    // adds filter on owners
    List<QueryOwned> ownees = query.getOwnees();
    for (QueryOwned ownee : ownees) {
        String propertyName = ClassInfo.getSimplestColumnName(ownee.field);
        FilterOperator op = operators.get("=");
        Key key = GaeMappingUtils.getKey(ownee.owner);
        q.addFilter(propertyName, op, key);
    }
    List<QueryOrder> orders = query.getOrders();
    for (QueryOrder order : orders) {
        Field f = order.field;
        if (ClassInfo.isId(f)) {
            q.addSort(Entity.KEY_RESERVED_PROPERTY, order.ascending ? SortDirection.ASCENDING : SortDirection.DESCENDING);
        } else {
            q.addSort(ClassInfo.getColumnNames(f)[0], order.ascending ? SortDirection.ASCENDING : SortDirection.DESCENDING);
        }
    }
    return q;
}

Example 3 with QueryOrder

use of siena.QueryOrder in project siena by mandubian.

the class JdbcDBUtils method appendSqlOrder.

public static <T> void appendSqlOrder(Query<T> query, StringBuilder sql) {
    Class<T> clazz = query.getQueriedClass();
    JdbcClassInfo info = JdbcClassInfo.getClassInfo(clazz);
    List<QueryOrder> orders = query.getOrders();
    List<QueryJoin> joins = query.getJoins();
    if (orders.isEmpty() && joins.isEmpty()) {
        return;
    }
    sql.append(" ORDER BY ");
    boolean first = true;
    for (QueryOrder order : orders) {
        if (!first) {
            sql.append(", ");
        }
        first = false;
        if (order.parentField == null) {
            String[] columns = ClassInfo.getColumnNames(order.field, info.tableName);
            for (String column : columns) {
                sql.append(column + (order.ascending ? "" : " DESC"));
            }
        } else {
            try {
                JdbcClassInfo parentCi = JdbcClassInfo.getClassInfo(order.parentField.getType());
                Field subField = order.parentField.getType().getField(order.field.getName());
                // get columns using join field alias
                //String[] columns = ClassInfo.getColumnNames(subField, parentCi.tableName);
                String[] columns = ClassInfo.getColumnNames(subField, parentCi.joinFieldAliases.get(order.parentField.getName()));
                for (String column : columns) {
                    sql.append(column + (order.ascending ? "" : " DESC"));
                }
            } catch (NoSuchFieldException ex) {
                throw new SienaException("Order not possible: join sort field " + order.field.getName() + " is not a known field of " + order.parentField.getName(), ex);
            }
        }
    }
}

Example 4 with QueryOrder

use of siena.QueryOrder in project siena by mandubian.

the class RemotePersistenceManager method createRequest.

private <T> Document createRequest(Query<T> query) {
    Class<?> clazz = query.getQueriedClass();
    Document request = createRequest("query");
    request.getRootElement().addAttribute("class", clazz.getName());
    List<QueryFilter> filters = query.getFilters();
    for (QueryFilter filter : filters) {
        if (QueryFilterSimple.class.isAssignableFrom(filter.getClass())) {
            QueryFilterSimple qf = (QueryFilterSimple) filter;
            Field field = qf.field;
            Object value = qf.value;
            Element filtr = request.getRootElement().addElement("filter");
            filtr.addAttribute("field", field.getName());
            filtr.addAttribute("operator", qf.operator);
            if (ClassInfo.isModel(value.getClass())) {
                Common.fillRequestElement((Model) value, filtr, true);
            } else {
                filtr.setText(Util.toString(field, value));
            }
        }
    }
    List<QueryOrder> orders = query.getOrders();
    for (QueryOrder order : orders) {
        Field field = order.field;
        request.getRootElement().addElement("order").addAttribute("field", field.getName()).addAttribute("ascending", Boolean.toString(order.ascending));
    }
    return request;
}

Example 5 with QueryOrder

use of siena.QueryOrder in project siena by mandubian.

the class BaseTest method testDumpRestoreQueryOrder.

public void testDumpRestoreQueryOrder() {
    Query<PersonLongAutoID> query = pm.createQuery(PersonLongAutoID.class).order("firstName");
    QueryOrder qo = (QueryOrder) query.getOrders().get(0);
    String str = JsonSerializer.serialize(qo).toString();
    assertNotNull(str);
    QueryOrder qoRes = (QueryOrder) JsonSerializer.deserialize(QueryOrder.class, Json.loads(str));
    assertNotNull(qoRes);
    assertEquals(qo.ascending, qoRes.ascending);
    assertEquals(qo.field.getName(), qoRes.field.getName());
}