AMQPCTableField Type

Represents an AMQP 0.9.1 table field.

Remarks

This type represents an AMQP 0.9.1 table field.

Fields

Name
String

The table field's name.

This property specifies the table field's name. The name must be an ASCII string that:

Starts with an ASCII letter, $, or $ character.
Only contains ASCII letters, digits, underscores, $, and $ characters.
Is unique among all sibling table field Names.
Is no longer than 128 characters.

Value
String

The table field's value.

This property specifies the table field's value.

ValueType
TiotAMQPCValueTypes

The table field's value type.

This property specifies the table field's value type (and thus, the format of the data in the Value property). Acceptable value types are:


Value Type	JSON Value Type	Description	Value Format
fvtBoolean (0)	`boolean`	Boolean	"True" or "False"
fvtByte (1)	`byte`	Byte	-128 to 127
fvtUbyte (2)	`ubyte`	Unsigned byte	0 to 255
fvtShort (3)	`short`	Short	-32768 to 32767
fvtUshort (4)	`ushort`	Unsigned short	0 to 65535
fvtInt (5)	`int`	Integer	-2147483648 to 2147483647
fvtUint (6)	`uint`	Unsigned integer	0 to 4294967295
fvtLong (7)	`long`	Long	-9223372036854775808 to 9223372036854775807
fvtUlong (8)	`ulong`	Unsigned long	0 to 18446744073709551615
fvtFloat (9)	`float`	Float	IEEE 754 32-bit floating point number
fvtDouble (10)	`double`	Double	IEEE 754 64-bit floating point number
fvtDecimal (11)	`decimal`	Decimal	Hex-encoded byte string
fvtSstring (12)	`sstring`	Short string	UTF-8 string data, limited to 255 bytes; may not contain null bytes (`\0`)
fvtString (13)	`string`	String	String data
fvtArray (14)	`array`	Array	JSON array of type-value pairs
fvtTimestamp (15)	`timestamp`	Timestamp	Number of milliseconds since the Unix epoch (January 1, 1970 00:00:00 UTC)
fvtTable (16)	`table`	Table	JSON object containing name-type-value tuples
fvtNull (17 - default)	`null`	Null	N/A (Value is ignored)

Note: The fvtUlong (8) and fvtSstring (12) value types are not supported when the RabbitMQCompatible configuration setting is enabled.

For the fvtArray (14) value type, the Value should be specified as a JSON array of type-value pairs; for example:

[
  { "type": "int", "value": 23 },
  { "type": "int", "value": -52 },
  { "type": "int", "value": 153325 }
]

For the fvtTable (16) value type, the Value should be specified as a JSON object containing name-type-value tuples; for example:

{
  { "name": "Test1", "type": "long", "value": 12345678901234 },
  { "name": "Test2", "type": "boolean", "value": "false" },
  { "name": "Test3", "type": "string", "value": "This is a test." }
}

Notes regarding fvtArray (14) and fvtTable (16) type Values:

All "type" fields in the JSON content must be set to one of the value types in the table above.
For fvtTable (16) type Values, all "name" fields must adhere to the rules described by the Key documentation.
Nesting and mixing multiple levels of arrays and tables in the JSON is allowed.

Constructors

constructor Create();

IPWorks IoT 2020 Delphi Edition

AMQPCTableField Type

Remarks

Fields

Constructors

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