WebSphere Message Brokers
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Writer: Terry Cowling

Reference topic

This build: July 31, 2007 21:24:15

Group reference CWF properties

Byte alignment

Property Type Meaning
Byte Alignment Enumerated type Specify how the object is aligned from the start of the message. Select one of:
  • 1 Bytes. This is the default value.
  • 2 Bytes
  • 4 Bytes
  • 8 Bytes
  • 16 Bytes
Leading Skip Count Integer Specify the number of bytes to skip before reading or writing this object. The default is 0, the minimum value is 0, and the maximum value is 999999. You can use this value to ignore unwanted fields in a structure, or to model a field defined by C or COBOL data which requires alignment on a 2, 4, 8 or 16 byte boundary. Specify the number of bytes to skip before reading or writing this object. When an output message is written, Skip Count bytes are assigned the value of the message set Byte Alignment Pad property.

For repeating objects, this property is applied to the first instance only.

Trailing Skip Count Integer Specify the number of bytes to skip after reading or writing this object. The default is 0, the minimum value is 0, and the maximum value is 999999. You can use this value to ignore unwanted fields in a structure, or to model a repeating structure containing fields which require alignment on a 2, 4, 8 or 16 byte boundary. When an output message is written, Skip Count bytes are assigned the value of the message set Byte Alignment Pad property.

For repeating objects, this property is applied to all instances.

Repeat

Property Type Meaning
Repeat Reference Enumerated type Use this property if the object occurs multiple times, and the number of occurrences is given dynamically by a field earlier in the message. Select an integer object from the drop-down list of integer objects that occur before this object in the structure of the message. The value of the selected integer specifies the number of occurrences of this object. If no objects are listed, there are no integer objects prior to this one in the message structure.

If a Repeat Reference is specified, it overrides any setting for the Max Occurs logical property when parsing and writing the message, but not for validation of the message.

Related concepts
Physical formats in the MRM domain
Custom wire format
Custom wire format: relationship to the logical model
Related tasks
Working with physical properties
Configuring physical properties
Related reference
Message model object properties
Physical properties for message model objects
XML wire format physical properties for message model objects
TDS format physical properties for message model objects
Documentation properties for all message set objects
Message model object properties by object
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This build: July 31, 2007 21:24:15

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