BlazeDS data type mapping (Java to ActionScript)

Converting data from Java to ActionScript

An object returned from a Java method is converted from Java to ActionScript. BlazeDS also handles objects found within objects. BlazeDS implicitly handles the Java data types in the following table.

Java type	ActionScript type (AMF 3)
enum (JDK 1.5)	String
java.lang.String	String
java.lang.Boolean, boolean	Boolean
java.lang.Integer, int	int If value < 0xF0000000 || value > 0x0FFFFFFF, the value is promoted to Number due to AMF encoding requirements.
java.lang.Short, short	int If i < 0xF0000000 || i > 0x0FFFFFFF, the value is promoted to Number.
java.lang.Byte, byte[]	int If i < 0xF0000000 || i > 0x0FFFFFFF, the value is promoted to Number.
java.lang.Byte[]	flash.utils.ByteArray
java.lang.Double, double	Number
java.lang.Long, long	Number
java.lang.Float, float	Number
java.lang.Character, char	String
java.lang.Character[], char[]	String
java. math.BigInteger	String
java.math.BigDecimal	String
java.util.Calendar	Date Dates are sent in the Coordinated Universal Time (UTC) time zone. Clients and servers must adjust time accordingly for time zones.
java.util.Date	Date Dates are sent in the UTC time zone. Clients and servers must adjust time accordingly for time zones.
java.util.Collection (for example, java.util.ArrayList)	mx.collections.ArrayCollection
java.lang.Object[]	Array
java.util.Map	Object (untyped). For example, a java.util.Map[] is converted to an Array (of Objects).
java.util.Dictionary	Object (untyped)
org.w3c.dom.Document	XML object
null	null
java.lang.Object (other than previously listed types)	Typed Object Objects are serialized using Java bean introspection rules and also include public fields. Fields that are static, transient, or nonpublic, as well as bean properties that are nonpublic or static, are excluded.

Note: You can enable legacy XML support for the flash.xml.XMLDocument type on any channel that is defined in the services-config.xml file.

Note: In Flex 1.5, java.util.Map was sent as an associative or ECMA Array. This is no longer a recommended practice. You can enable legacy Map support to associative Arrays, but Adobe recommends against doing this.