flex.messaging.endpoints.amf
Class LegacyFilter

java.lang.Object
  flex.messaging.endpoints.amf.AMFFilter
      flex.messaging.endpoints.amf.LegacyFilter

public class LegacyFilter
extends AMFFilter

AMF Headers are of limited use because the apply to the entire AMF packet, which may contain a batch of several requests.

Rather than relying on the Flash Player team to change the AMF specification, Flex 1.5 introduced the concept of a Message Envelope that allowed them to provide message level headers that apply to a single request body.

Essentially they introduced one more layer of indirection with an ASObject of type "Envelope" that had two properties:
- headers, which was an array of Header structures
- body, which was the actual data of the request (typically an array of arguments)

To save space on the wire, a Header structure was simply an array. The first element was the header name as a String, and was the only required field. The second element, a boolean, indicated whether the header must be understood. The third element, any Object, represented the header value, if required.

Field Summary

static String	LEGACY_ENVELOPE_FLAG_KEY
static String	LEGACY_ENVELOPE_FLAG_VALUE
static String	LEGACY_SECURITY_CREDENTIALS
static String	LEGACY_SECURITY_HEADER_NAME
static String	LEGACY_SECURITY_PRINCIPAL

Constructor Summary

LegacyFilter(BaseHTTPEndpoint endpoint)

Method Summary

void	invoke(ActionContext context) The core business method.

Methods inherited from class flex.messaging.endpoints.amf.AMFFilter

getNext, setNext

Methods inherited from class java.lang.Object

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

Field Detail

LEGACY_ENVELOPE_FLAG_KEY

public static final String LEGACY_ENVELOPE_FLAG_KEY

See Also:

Constant Field Values

LEGACY_ENVELOPE_FLAG_VALUE

public static final String LEGACY_ENVELOPE_FLAG_VALUE

See Also:

Constant Field Values

LEGACY_SECURITY_HEADER_NAME

public static final String LEGACY_SECURITY_HEADER_NAME

See Also:

Constant Field Values

LEGACY_SECURITY_PRINCIPAL

public static final String LEGACY_SECURITY_PRINCIPAL

See Also:

Constant Field Values

LEGACY_SECURITY_CREDENTIALS

public static final String LEGACY_SECURITY_CREDENTIALS

See Also:

Constant Field Values

Constructor Detail

LegacyFilter

public LegacyFilter(BaseHTTPEndpoint endpoint)

Method Detail

invoke

public void invoke(ActionContext context)
            throws IOException

Description copied from class: AMFFilter

The core business method.

Specified by:

invoke in class AMFFilter

Throws:

IOException