Examples with Id siena.Id used on opensource projects

Example 1 with Id

use of siena.Id in project siena by mandubian.

the class GaeMappingUtils method getKey.

public static Key getKey(Object obj) {
    Class<?> clazz = obj.getClass();
    ClassInfo info = ClassInfo.getClassInfo(clazz);
    try {
        Field idField = info.getIdField();
        Object value = Util.readField(obj, idField);
        // TODO verify that returning NULL is not a bad thing
        if (value == null)
            return null;
        Class<?> type = idField.getType();
        if (idField.isAnnotationPresent(Id.class)) {
            Id id = idField.getAnnotation(Id.class);
            switch(id.value()) {
                case NONE:
                    // long or string goes toString
                    return KeyFactory.createKey(ClassInfo.getClassInfo(clazz).tableName, value.toString());
                case AUTO_INCREMENT:
                    // as a string with auto_increment can't exist, it is not cast into long
                    if (Long.TYPE == type || Long.class.isAssignableFrom(type)) {
                        return KeyFactory.createKey(ClassInfo.getClassInfo(clazz).tableName, (Long) value);
                    }
                    return KeyFactory.createKey(ClassInfo.getClassInfo(clazz).tableName, value.toString());
                case UUID:
                    return KeyFactory.createKey(ClassInfo.getClassInfo(clazz).tableName, value.toString());
                default:
                    throw new SienaException("Id Generator " + id.value() + " not supported");
            }
        } else
            throw new SienaException("Field " + idField.getName() + " is not an @Id field");
    } catch (Exception e) {
        throw new SienaException(e);
    }
}

Example 2 with Id

use of siena.Id in project siena by mandubian.

the class GaeMappingUtils method createEntityInstanceFromParent.

public static Entity createEntityInstanceFromParent(Field idField, ClassInfo info, Object obj, Key parentKey, ClassInfo parentInfo, Field parentField) {
    Entity entity = null;
    Id id = idField.getAnnotation(Id.class);
    Class<?> type = idField.getType();
    if (id != null) {
        switch(id.value()) {
            case NONE:
                Object idVal = null;
                idVal = Util.readField(obj, idField);
                if (idVal == null)
                    throw new SienaException("Id Field " + idField.getName() + " value null");
                String keyVal = Util.toString(idField, idVal);
                entity = new Entity(getKindWithAncestorField(info, parentInfo, parentField), keyVal, parentKey);
                break;
            case AUTO_INCREMENT:
                // manages String ID as not long!!!
                if (Long.TYPE == type || Long.class.isAssignableFrom(type)) {
                    entity = new Entity(getKindWithAncestorField(info, parentInfo, parentField), parentKey);
                } else {
                    Object idStringVal = null;
                    idStringVal = Util.readField(obj, idField);
                    if (idStringVal == null)
                        throw new SienaException("Id Field " + idField.getName() + " value null");
                    String keyStringVal = Util.toString(idField, idStringVal);
                    entity = new Entity(getKindWithAncestorField(info, parentInfo, parentField), keyStringVal, parentKey);
                }
                break;
            case UUID:
                entity = new Entity(getKindWithAncestorField(info, parentInfo, parentField), UUID.randomUUID().toString(), parentKey);
                break;
            default:
                throw new SienaRestrictedApiException("DB", "createEntityInstance", "Id Generator " + id.value() + " not supported");
        }
    } else
        throw new SienaException("Field " + idField.getName() + " is not an @Id field");
    return entity;
}

Example 3 with Id

use of siena.Id in project siena by mandubian.

the class GaeMappingUtils method setIdFromKey.

public static void setIdFromKey(Field idField, Object obj, Key key) {
    Id id = idField.getAnnotation(Id.class);
    Class<?> type = idField.getType();
    if (id != null) {
        switch(id.value()) {
            case NONE:
                // idField.setAccessible(true);
                Object val = null;
                if (Long.TYPE == type || Long.class.isAssignableFrom(type)) {
                    val = Long.parseLong((String) key.getName());
                } else if (String.class.isAssignableFrom(type)) {
                    val = key.getName();
                } else {
                    throw new SienaRestrictedApiException("DB", "setKey", "Id Type " + idField.getType() + " not supported");
                }
                Util.setField(obj, idField, val);
                break;
            case AUTO_INCREMENT:
                // Long value means key.getId()
                if (Long.TYPE == type || Long.class.isAssignableFrom(idField.getType())) {
                    Util.setField(obj, idField, key.getId());
                } else {
                    idField.setAccessible(true);
                    Object val2 = null;
                    if (Long.TYPE == type || Long.class.isAssignableFrom(idField.getType())) {
                        val = Long.parseLong((String) key.getName());
                    } else if (String.class.isAssignableFrom(idField.getType())) {
                        val = key.getName();
                    } else {
                        throw new SienaRestrictedApiException("DB", "setKey", "Id Type " + idField.getType() + " not supported");
                    }
                    Util.setField(obj, idField, val2);
                }
                break;
            case UUID:
                Util.setField(obj, idField, key.getName());
                break;
            default:
                throw new SienaException("Id Generator " + id.value() + " not supported");
        }
    } else
        throw new SienaException("Field " + idField.getName() + " is not an @Id field");
}

Example 4 with Id

use of siena.Id in project siena by mandubian.

the class GaeMappingUtils method makeKeyFromParent.

public static Key makeKeyFromParent(ClassInfo info, Object object, Key parentKey, ClassInfo parentInfo, Field parentField) {
    try {
        Field idField = info.getIdField();
        Object idVal = Util.readField(object, idField);
        if (idVal == null)
            throw new SienaException("Id Field " + idField.getName() + " value null");
        if (idField.isAnnotationPresent(Id.class)) {
            Id id = idField.getAnnotation(Id.class);
            switch(id.value()) {
                case NONE:
                    // long or string goes toString
                    return KeyFactory.createKey(parentKey, getKindWithAncestorField(info, parentInfo, parentField), idVal.toString());
                case AUTO_INCREMENT:
                    Class<?> type = idField.getType();
                    // as a string with auto_increment can't exist, it is not cast into long
                    if (Long.TYPE == type || Long.class.isAssignableFrom(type)) {
                        return KeyFactory.createKey(parentKey, getKindWithAncestorField(info, parentInfo, parentField), (Long) idVal);
                    }
                    return KeyFactory.createKey(parentKey, getKindWithAncestorField(info, parentInfo, parentField), idVal.toString());
                case UUID:
                    return KeyFactory.createKey(parentKey, getKindWithAncestorField(info, parentInfo, parentField), idVal.toString());
                default:
                    throw new SienaException("Id Generator " + id.value() + " not supported");
            }
        } else
            throw new SienaException("Field " + idField.getName() + " is not an @Id field");
    } catch (Exception e) {
        throw new SienaException(e);
    }
}

Example 5 with Id

use of siena.Id in project siena by mandubian.

the class GaeMappingUtils method getKeyFromParent.

public static Key getKeyFromParent(Object obj, Key parentKey, ClassInfo parentInfo, Field parentField) {
    Class<?> clazz = obj.getClass();
    ClassInfo info = ClassInfo.getClassInfo(clazz);
    try {
        Field idField = info.getIdField();
        Object value = Util.readField(obj, idField);
        // TODO verify that returning NULL is not a bad thing
        if (value == null)
            return null;
        Class<?> type = idField.getType();
        if (idField.isAnnotationPresent(Id.class)) {
            Id id = idField.getAnnotation(Id.class);
            switch(id.value()) {
                case NONE:
                    // long or string goes toString
                    return KeyFactory.createKey(parentKey, getKindWithAncestorField(info, parentInfo, parentField), value.toString());
                case AUTO_INCREMENT:
                    // as a string with auto_increment can't exist, it is not cast into long
                    if (Long.TYPE == type || Long.class.isAssignableFrom(type)) {
                        return KeyFactory.createKey(parentKey, getKindWithAncestorField(info, parentInfo, parentField), (Long) value);
                    }
                    return KeyFactory.createKey(parentKey, getKindWithAncestorField(info, parentInfo, parentField), value.toString());
                case UUID:
                    return KeyFactory.createKey(parentKey, getKindWithAncestorField(info, parentInfo, parentField), value.toString());
                default:
                    throw new SienaException("Id Generator " + id.value() + " not supported");
            }
        } else
            throw new SienaException("Field " + idField.getName() + " is not an @Id field");
    } catch (Exception e) {
        throw new SienaException(e);
    }
}