spring-beans-2.0.xsd

如图1所示

<?xml version="1.0" encoding="UTF-8" standalone="no"?>

<xsd:schema xmlns="http://www.springframework.org/schema/beans"
		xmlns:xsd="http://www.w3.org/2001/XMLSchema"
		targetNamespace="http://www.springframework.org/schema/beans">

	<xsd:import namespace="http://www.w3.org/XML/1998/namespace"/>

	<xsd:annotation>
		<xsd:documentation><![CDATA[
	Spring XML Beans Schema, version 2.0
	Authors: Rob Harrop, Juergen Hoeller

	This defines a simple and consistent way of creating a namespace
	of JavaBeans objects, managed by a Spring BeanFactory, read by
	XmlBeanDefinitionReader (with DefaultBeanDefinitionDocumentReader).

	This document type is used by most Spring functionality, including
	web application contexts, which are based on bean factories.

	Each "bean" element in this document defines a JavaBean.
	Typically the bean class is specified, along with JavaBean properties
	and/or constructor arguments.

	A bean instance can be a "singleton" (shared instance) or a "prototype"
	(independent instance). Further scopes can be provided by extended
	bean factories, for example in a web environment.

	References among beans are supported, that is, setting a JavaBean property
	or a constructor argument to refer to another bean in the same factory
	(or an ancestor factory).

	As alternative to bean references, "inner bean definitions" can be used.
	Singleton flags of such inner bean definitions are effectively ignored:
	inner beans are typically anonymous prototypes.

	There is also support for lists, sets, maps, and java.util.Properties
	as bean property types or constructor argument types.
		]]></xsd:documentation>
	</xsd:annotation>

	<!-- base types -->
	<xsd:complexType name="identifiedType" abstract="true">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	The unique identifier for a bean. The scope of the identifier
	is the enclosing bean factory.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:attribute name="id" type="xsd:ID">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	The unique identifier for a bean.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
	</xsd:complexType>

	<!-- Top-level <beans> tag -->
	<xsd:element name="beans">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	The top level (typically root) element. Allows the definition
	of default values for all nested bean definitions.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:sequence>
				<xsd:element ref="description" minOccurs="0"/>
				<xsd:choice minOccurs="0" maxOccurs="unbounded">
					<xsd:element ref="import"/>
					<xsd:element ref="alias"/>
					<xsd:element ref="bean"/>
					<xsd:any namespace="##other" processContents="strict" minOccurs="0" maxOccurs="unbounded"/>
				</xsd:choice>
			</xsd:sequence>
			<xsd:attribute name="default-lazy-init" default="false" type="xsd:boolean">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The default 'lazy-init' value; see the documentation for the
	'lazy-init' attribute of the '<bean>/' element.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
			<xsd:attribute name="default-merge" default="false" type="xsd:boolean">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The default 'merge' value; see the documentation for the
	'merge' attribute of the various collection elements.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
			<xsd:attribute name="default-autowire" default="no">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The default 'autowire' value; see the documentation for the
	'autowire' attribute of the '<bean>/' element.
					]]></xsd:documentation>
				</xsd:annotation>
				<xsd:simpleType>
					<xsd:restriction base="xsd:NMTOKEN">
						<xsd:enumeration value="no"/>
						<xsd:enumeration value="byName"/>
						<xsd:enumeration value="byType"/>
						<xsd:enumeration value="constructor"/>
						<xsd:enumeration value="autodetect"/>
					</xsd:restriction>
				</xsd:simpleType>
			</xsd:attribute>
			<xsd:attribute name="default-dependency-check" default="none">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The default 'dependency-check' value; see the documentation for the
	'dependency-check' attribute of the '<bean>/' element.
					]]></xsd:documentation>
				</xsd:annotation>
				<xsd:simpleType>
					<xsd:restriction base="xsd:NMTOKEN">
						<xsd:enumeration value="none"/>
						<xsd:enumeration value="simple"/>
						<xsd:enumeration value="objects"/>
						<xsd:enumeration value="all"/>
					</xsd:restriction>
				</xsd:simpleType>
			</xsd:attribute>
			<xsd:attribute name="default-init-method" type="xsd:string">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The default 'init-method' value; see the documentation for the
	'init-method' attribute of the '<bean>/' element.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
			<xsd:attribute name="default-destroy-method" type="xsd:string">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The default 'destroy-method' value; see the documentation for the
	'destroy-method' attribute of the '<bean>/' element.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="description">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	Contains informative text describing the purpose of the enclosing element.
	Used primarily for user documentation of XML bean definition documents.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType mixed="true">
			<xsd:choice minOccurs="0" maxOccurs="unbounded"/>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="import">
		<xsd:annotation>
			<xsd:documentation source="java:com.jwork.core.io.Resource"><![CDATA[
	Specifies an XML bean definition resource to import.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:complexContent>
				<xsd:restriction base="xsd:anyType">
					<xsd:attribute name="resource" type="xsd:string" use="required">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	The relative resource location of the XML (bean definition) file to import,
	for example "myImport.xml" or "includes/myImport.xml" or "../myImport.xml".
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
				</xsd:restriction>
			</xsd:complexContent>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="alias">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	Defines an alias for a bean (which can reside in a different definition
	resource).
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:complexContent>
				<xsd:restriction base="xsd:anyType">
					<xsd:attribute name="name" type="xsd:string" use="required">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	The name of the bean to define an alias for.
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
					<xsd:attribute name="alias" type="xsd:string" use="required">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	The alias name to define for the bean.
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
				</xsd:restriction>
			</xsd:complexContent>
		</xsd:complexType>
	</xsd:element>

	<xsd:group name="beanElements">
		<xsd:sequence>
			<xsd:element ref="description" minOccurs="0"/>
			<xsd:choice minOccurs="0" maxOccurs="unbounded">
				<xsd:element ref="meta"/>
				<xsd:element ref="constructor-arg"/>
				<xsd:element ref="property"/>
				<xsd:element ref="lookup-method"/>
				<xsd:element ref="replaced-method"/>
				<xsd:any namespace="##other" processContents="strict" minOccurs="0" maxOccurs="unbounded"/>
			</xsd:choice>
		</xsd:sequence>
	</xsd:group>

	<xsd:attributeGroup name="beanAttributes">
		<xsd:attribute name="name" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	Can be used to create one or more aliases illegal in an (XML) id.
	Multiple aliases can be separated by any number of spaces, commas,
	or semi-colons (or indeed any mixture of the three).
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="class" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation source="java:java.lang.Class"><![CDATA[
	The fully qualified name of the bean's class, except if it serves only
	as a parent definition for child bean definitions.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="parent" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	The name of the parent bean definition.

	Will use the bean class of the parent if none is specified, but can
	also override it. In the latter case, the child bean class must be
	compatible with the parent, i.e. accept the parent's property values
	and constructor argument values, if any.

	A child bean definition will inherit constructor argument values,
	property values and method overrides from the parent, with the option
	to add new values. If init method, destroy method, factory bean and/or
	factory method are specified, they will override the corresponding
	parent settings.

	The remaining settings will always be taken from the child definition:
	depends on, autowire mode, dependency check, scope, lazy init.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="scope" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	The scope of this bean: typically "singleton" (one shared instance,
	which will be returned by all calls to getBean with the given id), or
	"prototype" (independent instance resulting from each call to getBean).
	Default is "singleton".

	Singletons are most commonly used, and are ideal for multi-threaded
	service objects. Further scopes, such as "request" or "session", might
	be supported by extended bean factories (e.g. in a web environment).

	Note: This attribute will not be inherited by child bean definitions.
	Hence, it needs to be specified per concrete bean definition.

	Inner bean definitions inherit the singleton status of their containing
	bean definition, unless explicitly specified: The inner bean will be a
	singleton if the containing bean is a singleton, and a prototype if
	the containing bean has any other scope.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="abstract" type="xsd:boolean">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	Is this bean "abstract", that is, not meant to be instantiated itself
	but rather just serving as parent for concrete child bean definitions?
	The default is "false". Specify "true" to tell the bean factory to not
	try to instantiate that particular bean in any case.

	Note: This attribute will not be inherited by child bean definitions.
	Hence, it needs to be specified per abstract bean definition.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="lazy-init" default="default" type="defaultable-boolean">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	Indicates whether or not this bean is to be lazily initialized.
	If false, it will be instantiated on startup by bean factories
	that perform eager initialization of singletons. The default is
	"false".

	Note: This attribute will not be inherited by child bean definitions.
	Hence, it needs to be specified per concrete bean definition.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="autowire" default="default">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	Controls whether bean properties are "autowired".
	This is an automagical process in which bean references don't need
	to be coded explicitly in the XML bean definition file, but rather the
	Spring container works out dependencies.

	There are 5 modes:

	1. "no"
	The traditional Spring default. No automagical wiring. Bean references
	must be defined in the XML file via the <ref/> element (or "ref"
	attribute). We recommend this in most cases as it makes documentation
	more explicit.

	2. "byName"
	Autowiring by property name. If a bean of class Cat exposes a dog
	property, Spring will try to set this to the value of the bean "dog"
	in the current container. If there is no matching bean by name, nothing
	special happens; use dependency-check="objects" to raise an error in
	that case.

	3. "byType"
	Autowiring if there is exactly one bean of the property type in the
	container. If there is more than one, a fatal error is raised, and
	you cannot use byType autowiring for that bean. If there is none,
	nothing special happens; use dependency-check="objects" to raise an
	error in that case.

	4. "constructor"
	Analogous to "byType" for constructor arguments. If there is not exactly
	one bean of the constructor argument type in the bean factory, a fatal
	error is raised.

	5. "autodetect"
	Chooses "constructor" or "byType" through introspection of the bean
	class. If a default constructor is found, "byType" gets applied.

	Note that explicit dependencies, i.e. "property" and "constructor-arg"
	elements, always override autowiring. Autowire behavior can be combined
	with dependency checking, which will be performed after all autowiring
	has been completed.

	Note: This attribute will not be inherited by child bean definitions.
	Hence, it needs to be specified per concrete bean definition.
				]]></xsd:documentation>
			</xsd:annotation>
			<xsd:simpleType>
				<xsd:restriction base="xsd:NMTOKEN">
					<xsd:enumeration value="default"/>
					<xsd:enumeration value="no"/>