com.vaadin.terminal.gwt.server
Class JsonCodec

java.lang.Object
  com.vaadin.terminal.gwt.server.JsonCodec

All Implemented Interfaces:

Serializable

public class JsonCodec
extends Object
implements Serializable

Decoder for converting RPC parameters and other values from JSON in transfer between the client and the server and vice versa.

Since:

7.0

See Also:

Serialized Form

Constructor Summary

JsonCodec()

Method Summary

static Object	decodeCustomType(Type targetType, Object value, ConnectorTracker connectorTracker)
static Object	decodeInternalOrCustomType(Type targetType, Object value, ConnectorTracker connectorTracker)
static Object	decodeInternalType(Type targetType, boolean restrictToInternalTypes, Object encodedJsonValue, ConnectorTracker connectorTracker) Decodes a value that is of an internal type.
static Object	encode(Object value, Object referenceValue, Type valueType, ConnectorTracker connectorTracker)
static boolean	isInternalTransportType(String transportType)
static boolean	isInternalType(Type type)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JsonCodec

public JsonCodec()

Method Detail

isInternalTransportType

public static boolean isInternalTransportType(String transportType)

isInternalType

public static boolean isInternalType(Type type)

decodeInternalOrCustomType

public static Object decodeInternalOrCustomType(Type targetType,
                                                Object value,
                                                ConnectorTracker connectorTracker)
                                         throws JSONException

Throws:

JSONException

decodeCustomType

public static Object decodeCustomType(Type targetType,
                                      Object value,
                                      ConnectorTracker connectorTracker)
                               throws JSONException

Throws:

JSONException

decodeInternalType

public static Object decodeInternalType(Type targetType,
                                        boolean restrictToInternalTypes,
                                        Object encodedJsonValue,
                                        ConnectorTracker connectorTracker)
                                 throws JSONException

Decodes a value that is of an internal type.

Ensures the encoded value is of the same type as target type.

Allows restricting collections so that they must be declared using generics. If this is used then all objects in the collection are encoded using the declared type. Otherwise only internal types are allowed in collections.

Parameters:

targetType - The type that should be returned by this method

valueAndType - The encoded value and type array

application - A reference to the application

enforceGenericsInCollections - true if generics should be enforce, false to only allow internal types in collections

Returns:

Throws:

JSONException

encode

public static Object encode(Object value,
                            Object referenceValue,
                            Type valueType,
                            ConnectorTracker connectorTracker)
                     throws JSONException

Throws:

JSONException