<?xml version="1.0" encoding="utf-8"?>
<xs:schema xmlns:sbe="http://fixprotocol.io/2016/sbe" xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://fixprotocol.io/2016/sbe" elementFormDefault="unqualified" version="1.0 Draft Standard">
<xs:annotation>
<xs:documentation>
Message schema for FIX Simple Binary Encoding
Version: 1.0 Draft Standard
© Copyright 2014-2016 FIX Protocol Limited
License: Creative Commons Attribution-NoDerivatives 4.0 International Public License
</xs:documentation>
</xs:annotation>
<xs:element name="messageSchema">
<xs:annotation>
<xs:documentation>
Root of XML document, holds all message templates
and their elements
</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:sequence>
<xs:element name="types" maxOccurs="unbounded">
<xs:annotation>
<xs:documentation>
More than one set of types may be provided.
Names must be unique across all encoding
types.
Encoding types may appear in any order.
</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:choice maxOccurs="unbounded">
<xs:element name="type" type="sbe:encodedDataType"/>
<xs:element name="composite" type="sbe:compositeDataType"/>
<xs:element name="enum" type="sbe:enumType"/>
<xs:element name="set" type="sbe:setType"/>
</xs:choice>
</xs:complexType>
</xs:element>
<xs:element ref="sbe:message" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="package" type="xs:string"/>
<xs:attribute name="id" type="xs:unsignedShort">
<xs:annotation>
<xs:documentation>Unique ID of a message schema
</xs:documentation>
</xs:annotation>
</xs:attribute>
<xs:attribute name="version" type="xs:nonNegativeInteger" use="required">
<xs:annotation>
<xs:documentation>The version of a message schema. Initial version
is 0.
</xs:documentation>
</xs:annotation>
</xs:attribute>
<xs:attribute name="semanticVersion" type="xs:string" use="optional">
<xs:annotation>
<xs:documentation>Application layer specification version, such as
FIX version 'FIX.5.0SP2'
</xs:documentation>
</xs:annotation>
</xs:attribute>
<xs:attribute name="description" type="xs:string" use="optional"/>
<xs:attribute name="byteOrder" default="littleEndian">
<xs:simpleType>
<xs:restriction base="xs:token">
<xs:enumeration value="bigEndian"/>
<xs:enumeration value="littleEndian"/>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
<xs:attribute name="headerType" type="sbe:symbolicName_t" default="messageHeader">
<xs:annotation>
<xs:documentation>
Name of the encoding type of the message header,
which is the same for all messages in a schema. The name has a
default, but an encoding of that name must be present under a
'types' element.
</xs:documentation>
</xs:annotation>
</xs:attribute>
</xs:complexType>
</xs:element>
<xs:element name="message" type="sbe:blockType">
<xs:annotation>
<xs:documentation>
A message type, also known as a message template
</xs:documentation>
</xs:annotation>
</xs:element>
<xs:complexType name="blockType">
<xs:annotation>
<xs:documentation>Base type of message and repeating group entry
</xs:documentation>
</xs:annotation>
<xs:sequence>
<xs:element name="field" type="sbe:fieldType" minOccurs="0" maxOccurs="unbounded">
<xs:annotation>
<xs:documentation>Fixed-length fields</xs:documentation>
</xs:annotation>
</xs:element>
<xs:element name="group" type="sbe:groupType" minOccurs="0" maxOccurs="unbounded"/>
<xs:element name="data" type="sbe:fieldType" minOccurs="0" maxOccurs="unbounded">
<xs:annotation>
<xs:documentation>Variable-length fields</xs:documentation>
</xs:annotation>
</xs:element>
</xs:sequence>
<xs:attribute name="name" type="sbe:symbolicName_t" use="required"/>
<xs:attribute name="id" type="xs:unsignedShort" use="required">
<xs:annotation>
<xs:documentation>Unique ID of a message template
</xs:documentation>
</xs:annotation>
</xs:attribute>
<xs:attribute name="blockLength" type="xs:nonNegativeInteger" use="optional">
<xs:annotation>
<xs:documentation>Space reserved for root level of message, not
include groups or variable-length
data elements.
</xs:documentation>
</xs:annotation>
</xs:attribute>
<xs:attributeGroup ref="sbe:semanticAttributes"/>
<xs:attributeGroup ref="sbe:versionAttributes"/>
</xs:complexType>
<xs:complexType name="groupType">
<xs:annotation>
<xs:documentation>
A repeating group contains an array of entries
</xs:documentation>
</xs:annotation>
<xs:complexContent>
<xs:extension base="sbe:blockType">
<xs:attribute name="dimensionType" type="sbe:symbolicName_t" default="groupSizeEncoding"/>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="encodedDataType" mixed="true">
<xs:annotation>
<xs:documentation>
Simple wire encoding consisting of a primitive type
or array of primitives
</xs:documentation>
</xs:annotation>
<xs:simpleContent>
<xs:extension base="xs:token">
<xs:attribute name="name" type="sbe:symbolicName_t" use="required"/>
<xs:attribute name="nullValue" type="xs:string" use="optional">
<xs:annotation>
<xs:documentation>Override of default null indicator for the data
type in SBE specification,
as a string.
</xs:documentation>
</xs:annotation>
</xs:attribute>
<xs:attribute name="minValue" type="xs:string" use="optional"/>
<xs:attribute name="maxValue" type="xs:string" use="optional"/>
<xs:attribute name="length" type="xs:nonNegativeInteger" default="1"/>
<xs:attribute name="primitiveType" use="required">
<xs:simpleType>
<xs:restriction base="xs:token">
<xs:enumeration value="char"/>
<xs:enumeration value="int8"/>
<xs:enumeration value="int16"/>
<xs:enumeration value="int32"/>
<xs:enumeration value="int64"/>
<xs:enumeration value="uint8"/>
<xs:enumeration value="uint16"/>
<xs:enumeration value="uint32"/>
<xs:enumeration value="uint64"/>
<xs:enumeration value="float"/>
<xs:enumeration value="double"/>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
<xs:attribute name="characterEncoding" type="xs:string" use="optional"/>
<xs:attributeGroup ref="sbe:alignmentAttributes"/>
<xs:attributeGroup ref="sbe:presenceAttributes"/>
<xs:attributeGroup ref="sbe:semanticAttributes"/>
<xs:attributeGroup ref="sbe:versionAttributes"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="compositeDataType" mixed="true">
<xs:annotation>
<xs:documentation>
A wire encoding composed of multiple parts
</xs:documentation>
</xs:annotation>
<xs:choice maxOccurs="unbounded">
<xs:element name="type" type="sbe:encodedDataType"/>
<xs:element name="enum" type="sbe:enumType"/>
<xs:element name="set" type="sbe:setType"/>
<xs:element name="composite" type="sbe:compositeDataType"/>
<xs:element name="ref" type="sbe:refType"/>
</xs:choice>
<xs:attribute name="name" type="sbe:symbolicName_t" use="required"/>
<xs:attributeGroup ref="sbe:alignmentAttributes"/>
<xs:attributeGroup ref="sbe:semanticAttributes"/>
<xs:attributeGroup ref="sbe:versionAttributes"/>
</xs:complexType>
<xs:complexType name="enumType" mixed="true">
<xs:annotation>
<xs:documentation>
An enumeration of valid values
</xs:documentation>
</xs:annotation>
<xs:sequence>
<xs:element name="validValue" type="sbe:validValue" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="name" type="sbe:symbolicName_t" use="required"/>
<xs:attribute name="encodingType" type="sbe:symbolicName_t" use="required"/>
<xs:attributeGroup ref="sbe:alignmentAttributes"/>
<xs:attributeGroup ref="sbe:semanticAttributes"/>
<xs:attributeGroup ref="sbe:versionAttributes"/>
</xs:complexType>
<xs:complexType name="validValue">
<xs:annotation>
<xs:documentation>
Valid value as a string
</xs:documentation>
</xs:annotation>
<xs:simpleContent>
<xs:extension base="xs:token">
<xs:attribute name="name" type="sbe:symbolicName_t" use="required"/>
<xs:attribute name="description" type="xs:string" use="optional"/>
<xs:attributeGroup ref="sbe:versionAttributes"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="refType" mixed="true">
<xs:annotation>
<xs:documentation>
A reference to any existing encoding type (simple type, enum or set)
to reuse as a member of a composite type
</xs:documentation>
</xs:annotation>
<xs:attribute name="name" type="sbe:symbolicName_t" use="required"/>
<xs:attribute name="type" type="sbe:symbolicName_t" use="required"/>
<xs:attributeGroup ref="sbe:alignmentAttributes"/>
<xs:attributeGroup ref="sbe:versionAttributes"/>
</xs:complexType>
<xs:complexType name="setType" mixed="true">
<xs:annotation>
<xs:documentation>
A multi value choice (encoded as a bitset)
</xs:documentation>
</xs:annotation>
<xs:sequence>
<xs:element name="choice" type="sbe:choice" maxOccurs="64"/>
</xs:sequence>
<xs:attribute name="name" type="sbe:symbolicName_t" use="required"/>
<xs:attribute name="encodingType" type="sbe:symbolicName_t" use="required"/>
<xs:attributeGroup ref="sbe:alignmentAttributes"/>
<xs:attributeGroup ref="sbe:semanticAttributes"/>
<xs:attributeGroup ref="sbe:versionAttributes"/>
</xs:complexType>
<xs:complexType name="choice">
<xs:annotation>
<xs:documentation>
A choice within a multi value set. Value is the
position within a bitset (zero-based index).
</xs:documentation>
</xs:annotation>
<xs:simpleContent>
<xs:extension base="xs:nonNegativeInteger">
<xs:attribute name="name" type="sbe:symbolicName_t" use="required"/>
<xs:attribute name="description" type="xs:string" use="optional"/>
<xs:attributeGroup ref="sbe:versionAttributes"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="fieldType">
<xs:annotation>
<xs:documentation>
A field of a message of a specified dataType
</xs:documentation>
</xs:annotation>
<xs:attribute name="name" type="sbe:symbolicName_t" use="required"/>
<xs:attribute name="id" type="xs:unsignedShort" use="required"/>
<xs:attribute name="type" type="sbe:symbolicName_t" use="required">
<xs:annotation>
<xs:documentation>Must match the name of an encoding contained by
'types' element
</xs:documentation>
</xs:annotation>
</xs:attribute>
<xs:attribute name="epoch" type="xs:string" default="unix"/>
<xs:attribute name="timeUnit" type="xs:string" default="nanosecond">
<xs:annotation>
<xs:documentation>Deprecated - only for back compatibility with RC2
</xs:documentation>
</xs:annotation>
</xs:attribute>
<xs:attributeGroup ref="sbe:alignmentAttributes"/>
<xs:attributeGroup ref="sbe:presenceAttributes"/>
<xs:attributeGroup ref="sbe:semanticAttributes"/>
<xs:attributeGroup ref="sbe:versionAttributes"/>
</xs:complexType>
<xs:attributeGroup name="semanticAttributes">
<xs:annotation>
<xs:documentation>
Application layer class. Maps a field or encoding
to a FIX data type.
</xs:documentation>
</xs:annotation>
<xs:attribute name="semanticType" type="xs:token" use="optional"/>
<xs:attribute name="description" type="xs:string" use="optional"/>
</xs:attributeGroup>
<xs:attributeGroup name="versionAttributes">
<xs:annotation>
<xs:documentation>
Schema versioning supports message extension
</xs:documentation>
</xs:annotation>
<xs:attribute name="sinceVersion" type="xs:nonNegativeInteger" default="0">
<xs:annotation>
<xs:documentation>
The schema version in which an element was added
</xs:documentation>
</xs:annotation>
</xs:attribute>
<xs:attribute name="deprecated" type="xs:nonNegativeInteger" use="optional">
<xs:annotation>
<xs:documentation>
The version of the schema in which an element was
deprecated. It is retained for back compatibility but should no
longer be used by updated applications.
</xs:documentation>
</xs:annotation>
</xs:attribute>
</xs:attributeGroup>
<xs:attributeGroup name="alignmentAttributes">
<xs:attribute name="offset" type="xs:unsignedInt" use="optional">
<xs:annotation>
<xs:documentation>Offset from start of a composite type or block
as a zero-based index.
</xs:documentation>
</xs:annotation>
</xs:attribute>
</xs:attributeGroup>
<xs:attributeGroup name="presenceAttributes">
<xs:attribute name="presence" default="required">
<xs:simpleType>
<xs:restriction base="xs:token">
<xs:enumeration value="required">
<xs:annotation>
<xs:documentation>The value must always be populated
</xs:documentation>
</xs:annotation>
</xs:enumeration>
<xs:enumeration value="optional">
<xs:annotation>
<xs:documentation>Value may be set to nullValue for its data type
</xs:documentation>
</xs:annotation>
</xs:enumeration>
<xs:enumeration value="constant">
<xs:annotation>
<xs:documentation>Value does not vary so it need not be
serialized on the wire
</xs:documentation>
</xs:annotation>
</xs:enumeration>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
<xs:attribute name="valueRef" type="sbe:qualifiedName_t" use="optional">
<xs:annotation>
<xs:documentation>A constant value as valid value of an enum
in the form enum-name.valid-value-name
</xs:documentation>
</xs:annotation>
</xs:attribute>
</xs:attributeGroup>
<xs:simpleType name="symbolicName_t">
<xs:restriction base="xs:string">
<xs:minLength value="1"/>
<xs:maxLength value="64"/>
<xs:pattern value="([A-Z]|[a-z]|_)([0-9]|[A-Z]|[a-z]|_)*"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="qualifiedName_t">
<xs:restriction base="xs:string">
<xs:pattern value="([A-Z]|[a-z]|_)([0-9]|[A-Z]|[a-z]|_)*\.([A-Z]|[a-z]|_)([0-9]|[A-Z]|[a-z]|_)*"/>
</xs:restriction>
</xs:simpleType>
</xs:schema>