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Allow class-relative resource loading in GenericXmlApplicationContext (SPR-7530)

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Before:

    - new GenericXmlApplicationContext("com/acme/path/to/resource.xml");

    - GenericXmlApplicationContext ctx = new GenericXmlApplicationContext();
      ctx.load("com/acme/path/to/resource.xml");
      ctx.refresh();

After:

    - The above remain supported, as well as new class-relative variants

    - import com.acme.path.to.Foo;
      new GenericXmlApplicationContext(Foo.class, "resource.xml");

    - import com.acme.path.to.Foo;
      GenericXmlApplicationContext ctx = new GenericXmlApplicationContext();
      ctx.load(Foo.class, "resource.xml");
      ctx.refresh();

These changes are generally aligned with signatures long available in
ClassPathXmlApplicationContext. As GenericXmlApplicationContext is
intended to be a more flexible successor to CPXAC (and FSXAC), it's
important that all the same conveniences are available.
This commit is contained in:
Chris Beams
2010-09-08 15:30:48 +00:00
parent 912d349366
commit 6f69b7b752
3 changed files with 88 additions and 0 deletions
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27
org.springframework.context/src/main/java/org/springframework/context/support/GenericXmlApplicationContext.java
View File

@@ -17,6 +17,7 @@
package org.springframework.context.support;
import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
/**
@@ -30,6 +31,7 @@ import org.springframework.core.io.Resource;
* deliberately override certain bean definitions via an extra configuration file.
*
* @author Juergen Hoeller
* @author Chris Beams
* @since 3.0
* @see #load
* @see XmlBeanDefinitionReader
@@ -67,6 +69,17 @@ public class GenericXmlApplicationContext extends GenericApplicationContext {
refresh();
}
/**
* Create a new GenericXmlApplicationContext, loading bean definitions
* from the given resource locations and automatically refreshing the context.
* @param relativeClass class whose package will be used as a prefix when
* loading each specified resource name
* @param resourceNames relatively-qualified names of resources to load
*/
public GenericXmlApplicationContext(Class<?> relativeClass, String... resourceNames) {
load(relativeClass, resourceNames);
refresh();
}
/**
* Set whether to use XML validation. Default is <code>true</code>.
@@ -92,4 +105,18 @@ public class GenericXmlApplicationContext extends GenericApplicationContext {
this.reader.loadBeanDefinitions(resourceLocations);
}
/**
* Load bean definitions from the given XML resources.
* @param relativeClass class whose package will be used as a prefix when
* loading each specified resource name
* @param resourceNames relatively-qualified names of resources to load
*/
public void load(Class<?> relativeClass, String... resourceNames) {
Resource[] resources = new Resource[resourceNames.length];
for (int i = 0; i < resourceNames.length; i++) {
resources[i] = new ClassPathResource(resourceNames[i], relativeClass);
}
this.load(resources);
}
}