Polishing

(cherry picked from commit a31ebb6)
This commit is contained in:
Juergen Hoeller
2014-08-15 00:07:25 +02:00
parent 0c89279d61
commit 0492c9955c
10 changed files with 54 additions and 87 deletions

View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2013 the original author or authors.
* Copyright 2002-2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -170,8 +170,7 @@ public interface BeanFactory {
* <p>Allows for specifying explicit constructor arguments / factory method arguments,
* overriding the specified default arguments (if any) in the bean definition.
* @param name the name of the bean to retrieve
* @param args arguments to use if creating a prototype using explicit arguments to a
* static factory method. It is invalid to use a non-null args value in any other case.
* @param args arguments to use if creating a prototype using explicit arguments
* @return an instance of the bean
* @throws NoSuchBeanDefinitionException if there is no such bean definition
* @throws BeanDefinitionStoreException if arguments have been given but

View File

@@ -236,7 +236,8 @@ public class AutowiredAnnotationBeanPostProcessor extends InstantiationAwareBean
Annotation annotation = findAutowiredAnnotation(candidate);
if (annotation != null) {
if (requiredConstructor != null) {
throw new BeanCreationException("Invalid autowire-marked constructor: " + candidate +
throw new BeanCreationException(beanName,
"Invalid autowire-marked constructor: " + candidate +
". Found another constructor with 'required' Autowired annotation: " +
requiredConstructor);
}
@@ -247,10 +248,10 @@ public class AutowiredAnnotationBeanPostProcessor extends InstantiationAwareBean
boolean required = determineRequiredStatus(annotation);
if (required) {
if (!candidates.isEmpty()) {
throw new BeanCreationException(
throw new BeanCreationException(beanName,
"Invalid autowire-marked constructors: " + candidates +
". Found another constructor with 'required' Autowired annotation: " +
requiredConstructor);
candidate);
}
requiredConstructor = candidate;
}

View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2013 the original author or authors.
* Copyright 2002-2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -1228,7 +1228,7 @@ public abstract class AbstractBeanFactory extends FactoryBeanRegistrySupport imp
// Check validity of the usage of the args parameter. This can
// only be used for prototypes constructed via a factory method.
if (args != null && !mbd.isPrototype()) {
throw new BeanDefinitionStoreException(
throw new BeanDefinitionStoreException(mbd.getResourceDescription(), beanName,
"Can only specify arguments for the getBean method when referring to a prototype bean definition");
}
}

View File

@@ -33,8 +33,9 @@ import org.springframework.cglib.proxy.NoOp;
/**
* Default object instantiation strategy for use in BeanFactories.
* Uses CGLIB to generate subclasses dynamically if methods need to be
* overridden by the container, to implement Method Injection.
*
* <p>Uses CGLIB to generate subclasses dynamically if methods need to be
* overridden by the container to implement <em>Method Injection</em>.
*
* @author Rod Johnson
* @author Juergen Hoeller
@@ -50,13 +51,13 @@ public class CglibSubclassingInstantiationStrategy extends SimpleInstantiationSt
/**
* Index in the CGLIB callback array for a method that should
* be overridden to provide method lookup.
* be overridden to provide <em>method lookup</em>.
*/
private static final int LOOKUP_OVERRIDE = 1;
/**
* Index in the CGLIB callback array for a method that should
* be overridden using generic Methodreplacer functionality.
* be overridden using generic <em>method replacer</em> functionality.
*/
private static final int METHOD_REPLACER = 2;
@@ -96,13 +97,13 @@ public class CglibSubclassingInstantiationStrategy extends SimpleInstantiationSt
}
/**
* Create a new instance of a dynamically generated subclasses implementing the
* Create a new instance of a dynamically generated subclass implementing the
* required lookups.
* @param ctor constructor to use. If this is {@code null}, use the
* no-arg constructor (no parameterization, or Setter Injection)
* @param args arguments to use for the constructor.
* Ignored if the ctor parameter is {@code null}.
* @return new instance of the dynamically generated class
* Ignored if the {@code ctor} parameter is {@code null}.
* @return new instance of the dynamically generated subclass
*/
public Object instantiate(Constructor<?> ctor, Object[] args) {
Enhancer enhancer = new Enhancer();

View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2012 the original author or authors.
* Copyright 2002-2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -37,10 +37,9 @@ public class LookupOverride extends MethodOverride {
/**
* Construct a new LookupOverride.
* @param methodName the name of the method to override.
* This method must have no arguments.
* @param beanName name of the bean in the current BeanFactory
* that the overriden method should return
* @param methodName the name of the method to override
* @param beanName the name of the bean in the current BeanFactory
* that the overridden method should return
*/
public LookupOverride(String methodName, String beanName) {
super(methodName);
@@ -48,6 +47,7 @@ public class LookupOverride extends MethodOverride {
this.beanName = beanName;
}
/**
* Return the name of the bean that should be returned by this method.
*/
@@ -55,9 +55,8 @@ public class LookupOverride extends MethodOverride {
return this.beanName;
}
/**
* Match method of the given name, with no parameters.
* Match the method of the given name, with no parameters.
*/
@Override
public boolean matches(Method method) {
@@ -65,11 +64,6 @@ public class LookupOverride extends MethodOverride {
}
@Override
public String toString() {
return "LookupOverride for method '" + getMethodName() + "'; will return bean '" + this.beanName + "'";
}
@Override
public boolean equals(Object other) {
return (other instanceof LookupOverride && super.equals(other) &&
@@ -81,4 +75,9 @@ public class LookupOverride extends MethodOverride {
return (29 * super.hashCode() + ObjectUtils.nullSafeHashCode(this.beanName));
}
@Override
public String toString() {
return "LookupOverride for method '" + getMethodName() + "'; will return bean '" + this.beanName + "'";
}
}

View File

@@ -52,6 +52,7 @@ public abstract class MethodOverride implements BeanMetadataElement {
this.methodName = methodName;
}
/**
* Return the name of the method to be overridden.
*/
@@ -98,6 +99,7 @@ public abstract class MethodOverride implements BeanMetadataElement {
*/
public abstract boolean matches(Method method);
@Override
public boolean equals(Object other) {
if (this == other) {

View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2012 the original author or authors.
* Copyright 2002-2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -52,6 +52,7 @@ public class ReplaceOverride extends MethodOverride {
this.methodReplacerBeanName = methodReplacerBeanName;
}
/**
* Return the name of the bean implementing MethodReplacer.
*/
@@ -68,28 +69,22 @@ public class ReplaceOverride extends MethodOverride {
this.typeIdentifiers.add(identifier);
}
@Override
public boolean matches(Method method) {
// TODO could cache result for efficiency
if (!method.getName().equals(getMethodName())) {
// It can't match.
return false;
}
if (!isOverloaded()) {
// No overloaded: don't worry about arg type matching.
// Not overloaded: don't worry about arg type matching...
return true;
}
// If we get to here, we need to insist on precise argument matching.
// If we get here, we need to insist on precise argument matching...
if (this.typeIdentifiers.size() != method.getParameterTypes().length) {
return false;
}
for (int i = 0; i < this.typeIdentifiers.size(); i++) {
String identifier = this.typeIdentifiers.get(i);
if (!method.getParameterTypes()[i].getName().contains(identifier)) {
// This parameter cannot match.
return false;
}
}
@@ -97,12 +92,6 @@ public class ReplaceOverride extends MethodOverride {
}
@Override
public String toString() {
return "Replace override for method '" + getMethodName() + "; will call bean '" +
this.methodReplacerBeanName + "'";
}
@Override
public boolean equals(Object other) {
if (!(other instanceof ReplaceOverride) || !super.equals(other)) {
@@ -121,4 +110,10 @@ public class ReplaceOverride extends MethodOverride {
return hashCode;
}
@Override
public String toString() {
return "Replace override for method '" + getMethodName() + "; will call bean '" +
this.methodReplacerBeanName + "'";
}
}