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PluggableSchemaResolver (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.beans.factory.xml
Class PluggableSchemaResolver

java.lang.Object
  org.springframework.beans.factory.xml.PluggableSchemaResolver

All Implemented Interfaces:

EntityResolver

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public class PluggableSchemaResolver
extends Object
implements EntityResolver

EntityResolver implementation that attempts to resolve schema URLs into local classpath resources using a set of mappings files.

By default, this class will look for mapping files in the classpath using the pattern: META-INF/spring.schemas allowing for multiple files to exist on the classpath at any one time. The format of META-INF/spring.schemas is a properties file where each line should be of the form systemId=schema-location where schema-location should also be a schema file in the classpath. Since systemId is commonly a URL, one must be careful to escape any ':' characters which are treated as delimiters in properties files.

The pattern for the mapping files can be overidden using the PluggableSchemaResolver(ClassLoader, String) constructor

Since:

2.0

Author:

Rob Harrop, Juergen Hoeller

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Field Summary
static String	DEFAULT_SCHEMA_MAPPINGS_LOCATION           The location of the file that defines schema mappings.

 

Constructor Summary
PluggableSchemaResolver(ClassLoader classLoader)           Loads the schema URL -> schema file location mappings using the default mapping file pattern "META-INF/spring.schemas".
PluggableSchemaResolver(ClassLoader classLoader, String schemaMappingsLocation)           Loads the schema URL -> schema file location mappings using the given mapping file pattern.

 

Method Summary
InputSource	resolveEntity(String publicId, String systemId)

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

DEFAULT_SCHEMA_MAPPINGS_LOCATION

public static final String DEFAULT_SCHEMA_MAPPINGS_LOCATION

The location of the file that defines schema mappings. Can be present in multiple JAR files.

See Also:

Constant Field Values

Constructor Detail

PluggableSchemaResolver

public PluggableSchemaResolver(ClassLoader classLoader)

Loads the schema URL -> schema file location mappings using the default mapping file pattern "META-INF/spring.schemas".

Parameters:

classLoader - the ClassLoader to use for loading (can be null) to use the default ClassLoader)

See Also:

PropertiesLoaderUtils.loadAllProperties(String, ClassLoader)

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PluggableSchemaResolver

public PluggableSchemaResolver(ClassLoader classLoader,
                               String schemaMappingsLocation)

Loads the schema URL -> schema file location mappings using the given mapping file pattern.

Parameters:

classLoader - the ClassLoader to use for loading (can be null) to use the default ClassLoader)

schemaMappingsLocation - the location of the file that defines schema mappings (must not be empty)

See Also:

PropertiesLoaderUtils.loadAllProperties(String, ClassLoader)

Method Detail

resolveEntity

public InputSource resolveEntity(String publicId,
                                 String systemId)
                          throws IOException

Specified by:

resolveEntity in interface EntityResolver

Throws:

IOException

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