Java Code Examples for org.springframework.beans.factory.config.DependencyDescriptor#fallbackMatchAllowed()
The following examples show how to use
org.springframework.beans.factory.config.DependencyDescriptor#fallbackMatchAllowed() .
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Example 1
Source File: GenericTypeAwareAutowireCandidateResolver.java From spring-analysis-note with MIT License | 4 votes |
/** * Match the given dependency type with its generic type information against the given * candidate bean definition. */ protected boolean checkGenericTypeMatch(BeanDefinitionHolder bdHolder, DependencyDescriptor descriptor) { ResolvableType dependencyType = descriptor.getResolvableType(); if (dependencyType.getType() instanceof Class) { // No generic type -> we know it's a Class type-match, so no need to check again. return true; } ResolvableType targetType = null; boolean cacheType = false; RootBeanDefinition rbd = null; if (bdHolder.getBeanDefinition() instanceof RootBeanDefinition) { rbd = (RootBeanDefinition) bdHolder.getBeanDefinition(); } if (rbd != null) { targetType = rbd.targetType; if (targetType == null) { cacheType = true; // First, check factory method return type, if applicable targetType = getReturnTypeForFactoryMethod(rbd, descriptor); if (targetType == null) { RootBeanDefinition dbd = getResolvedDecoratedDefinition(rbd); if (dbd != null) { targetType = dbd.targetType; if (targetType == null) { targetType = getReturnTypeForFactoryMethod(dbd, descriptor); } } } } } if (targetType == null) { // Regular case: straight bean instance, with BeanFactory available. if (this.beanFactory != null) { Class<?> beanType = this.beanFactory.getType(bdHolder.getBeanName()); if (beanType != null) { targetType = ResolvableType.forClass(ClassUtils.getUserClass(beanType)); } } // Fallback: no BeanFactory set, or no type resolvable through it // -> best-effort match against the target class if applicable. if (targetType == null && rbd != null && rbd.hasBeanClass() && rbd.getFactoryMethodName() == null) { Class<?> beanClass = rbd.getBeanClass(); if (!FactoryBean.class.isAssignableFrom(beanClass)) { targetType = ResolvableType.forClass(ClassUtils.getUserClass(beanClass)); } } } if (targetType == null) { return true; } if (cacheType) { rbd.targetType = targetType; } if (descriptor.fallbackMatchAllowed() && (targetType.hasUnresolvableGenerics() || targetType.resolve() == Properties.class)) { // Fallback matches allow unresolvable generics, e.g. plain HashMap to Map<String,String>; // and pragmatically also java.util.Properties to any Map (since despite formally being a // Map<Object,Object>, java.util.Properties is usually perceived as a Map<String,String>). return true; } // Full check for complex generic type match... return dependencyType.isAssignableFrom(targetType); }
Example 2
Source File: GenericTypeAwareAutowireCandidateResolver.java From java-technology-stack with MIT License | 4 votes |
/** * Match the given dependency type with its generic type information against the given * candidate bean definition. */ protected boolean checkGenericTypeMatch(BeanDefinitionHolder bdHolder, DependencyDescriptor descriptor) { ResolvableType dependencyType = descriptor.getResolvableType(); if (dependencyType.getType() instanceof Class) { // No generic type -> we know it's a Class type-match, so no need to check again. return true; } ResolvableType targetType = null; boolean cacheType = false; RootBeanDefinition rbd = null; if (bdHolder.getBeanDefinition() instanceof RootBeanDefinition) { rbd = (RootBeanDefinition) bdHolder.getBeanDefinition(); } if (rbd != null) { targetType = rbd.targetType; if (targetType == null) { cacheType = true; // First, check factory method return type, if applicable targetType = getReturnTypeForFactoryMethod(rbd, descriptor); if (targetType == null) { RootBeanDefinition dbd = getResolvedDecoratedDefinition(rbd); if (dbd != null) { targetType = dbd.targetType; if (targetType == null) { targetType = getReturnTypeForFactoryMethod(dbd, descriptor); } } } } } if (targetType == null) { // Regular case: straight bean instance, with BeanFactory available. if (this.beanFactory != null) { Class<?> beanType = this.beanFactory.getType(bdHolder.getBeanName()); if (beanType != null) { targetType = ResolvableType.forClass(ClassUtils.getUserClass(beanType)); } } // Fallback: no BeanFactory set, or no type resolvable through it // -> best-effort match against the target class if applicable. if (targetType == null && rbd != null && rbd.hasBeanClass() && rbd.getFactoryMethodName() == null) { Class<?> beanClass = rbd.getBeanClass(); if (!FactoryBean.class.isAssignableFrom(beanClass)) { targetType = ResolvableType.forClass(ClassUtils.getUserClass(beanClass)); } } } if (targetType == null) { return true; } if (cacheType) { rbd.targetType = targetType; } if (descriptor.fallbackMatchAllowed() && (targetType.hasUnresolvableGenerics() || targetType.resolve() == Properties.class)) { // Fallback matches allow unresolvable generics, e.g. plain HashMap to Map<String,String>; // and pragmatically also java.util.Properties to any Map (since despite formally being a // Map<Object,Object>, java.util.Properties is usually perceived as a Map<String,String>). return true; } // Full check for complex generic type match... return dependencyType.isAssignableFrom(targetType); }
Example 3
Source File: GenericTypeAwareAutowireCandidateResolver.java From lams with GNU General Public License v2.0 | 4 votes |
/** * Match the given dependency type with its generic type information against the given * candidate bean definition. */ protected boolean checkGenericTypeMatch(BeanDefinitionHolder bdHolder, DependencyDescriptor descriptor) { ResolvableType dependencyType = descriptor.getResolvableType(); if (dependencyType.getType() instanceof Class) { // No generic type -> we know it's a Class type-match, so no need to check again. return true; } ResolvableType targetType = null; boolean cacheType = false; RootBeanDefinition rbd = null; if (bdHolder.getBeanDefinition() instanceof RootBeanDefinition) { rbd = (RootBeanDefinition) bdHolder.getBeanDefinition(); } if (rbd != null) { targetType = rbd.targetType; if (targetType == null) { cacheType = true; // First, check factory method return type, if applicable targetType = getReturnTypeForFactoryMethod(rbd, descriptor); if (targetType == null) { RootBeanDefinition dbd = getResolvedDecoratedDefinition(rbd); if (dbd != null) { targetType = dbd.targetType; if (targetType == null) { targetType = getReturnTypeForFactoryMethod(dbd, descriptor); } } } } } if (targetType == null) { // Regular case: straight bean instance, with BeanFactory available. if (this.beanFactory != null) { Class<?> beanType = this.beanFactory.getType(bdHolder.getBeanName()); if (beanType != null) { targetType = ResolvableType.forClass(ClassUtils.getUserClass(beanType)); } } // Fallback: no BeanFactory set, or no type resolvable through it // -> best-effort match against the target class if applicable. if (targetType == null && rbd != null && rbd.hasBeanClass() && rbd.getFactoryMethodName() == null) { Class<?> beanClass = rbd.getBeanClass(); if (!FactoryBean.class.isAssignableFrom(beanClass)) { targetType = ResolvableType.forClass(ClassUtils.getUserClass(beanClass)); } } } if (targetType == null) { return true; } if (cacheType) { rbd.targetType = targetType; } if (descriptor.fallbackMatchAllowed() && targetType.hasUnresolvableGenerics()) { return true; } // Full check for complex generic type match... return dependencyType.isAssignableFrom(targetType); }
Example 4
Source File: GenericTypeAwareAutowireCandidateResolver.java From blog_demos with Apache License 2.0 | 4 votes |
/** * Match the given dependency type with its generic type information against the given * candidate bean definition. */ protected boolean checkGenericTypeMatch(BeanDefinitionHolder bdHolder, DependencyDescriptor descriptor) { ResolvableType dependencyType = descriptor.getResolvableType(); if (dependencyType.getType() instanceof Class) { // No generic type -> we know it's a Class type-match, so no need to check again. return true; } ResolvableType targetType = null; RootBeanDefinition rbd = null; if (bdHolder.getBeanDefinition() instanceof RootBeanDefinition) { rbd = (RootBeanDefinition) bdHolder.getBeanDefinition(); } if (rbd != null) { // First, check factory method return type, if applicable targetType = getReturnTypeForFactoryMethod(rbd, descriptor); if (targetType == null) { RootBeanDefinition dbd = getResolvedDecoratedDefinition(rbd); if (dbd != null) { targetType = getReturnTypeForFactoryMethod(dbd, descriptor); } } } if (targetType == null) { // Regular case: straight bean instance, with BeanFactory available. if (this.beanFactory != null) { Class<?> beanType = this.beanFactory.getType(bdHolder.getBeanName()); if (beanType != null) { targetType = ResolvableType.forClass(ClassUtils.getUserClass(beanType)); } } // Fallback: no BeanFactory set, or no type resolvable through it // -> best-effort match against the target class if applicable. if (targetType == null && rbd != null && rbd.hasBeanClass() && rbd.getFactoryMethodName() == null) { Class<?> beanClass = rbd.getBeanClass(); if (!FactoryBean.class.isAssignableFrom(beanClass)) { targetType = ResolvableType.forClass(ClassUtils.getUserClass(beanClass)); } } } if (targetType == null || (descriptor.fallbackMatchAllowed() && targetType.hasUnresolvableGenerics())) { return true; } // Full check for complex generic type match... return dependencyType.isAssignableFrom(targetType); }
Example 5
Source File: GenericTypeAwareAutowireCandidateResolver.java From spring4-understanding with Apache License 2.0 | 4 votes |
/** * Match the given dependency type with its generic type information against the given * candidate bean definition. */ protected boolean checkGenericTypeMatch(BeanDefinitionHolder bdHolder, DependencyDescriptor descriptor) { ResolvableType dependencyType = descriptor.getResolvableType(); if (dependencyType.getType() instanceof Class) { // No generic type -> we know it's a Class type-match, so no need to check again. return true; } ResolvableType targetType = null; RootBeanDefinition rbd = null; if (bdHolder.getBeanDefinition() instanceof RootBeanDefinition) { rbd = (RootBeanDefinition) bdHolder.getBeanDefinition(); } if (rbd != null) { // First, check factory method return type, if applicable targetType = getReturnTypeForFactoryMethod(rbd, descriptor); if (targetType == null) { RootBeanDefinition dbd = getResolvedDecoratedDefinition(rbd); if (dbd != null) { targetType = getReturnTypeForFactoryMethod(dbd, descriptor); } } } if (targetType == null) { // Regular case: straight bean instance, with BeanFactory available. if (this.beanFactory != null) { Class<?> beanType = this.beanFactory.getType(bdHolder.getBeanName()); if (beanType != null) { targetType = ResolvableType.forClass(ClassUtils.getUserClass(beanType)); } } // Fallback: no BeanFactory set, or no type resolvable through it // -> best-effort match against the target class if applicable. if (targetType == null && rbd != null && rbd.hasBeanClass() && rbd.getFactoryMethodName() == null) { Class<?> beanClass = rbd.getBeanClass(); if (!FactoryBean.class.isAssignableFrom(beanClass)) { targetType = ResolvableType.forClass(ClassUtils.getUserClass(beanClass)); } } } if (targetType == null || (descriptor.fallbackMatchAllowed() && targetType.hasUnresolvableGenerics())) { return true; } // Full check for complex generic type match... return dependencyType.isAssignableFrom(targetType); }