abstractbeandefinition.java

spring api 源代码

		this.autowireCandidate = autowireCandidate;
	}

	/**
	 * Return whether this bean is a candidate for getting autowired into
	 * some other bean.
	 */
	public boolean isAutowireCandidate() {
		return this.autowireCandidate;
	}

	/**
	 * Set the autowire mode. This determines whether any automagical detection
	 * and setting of bean references will happen. Default is AUTOWIRE_NO,
	 * which means there's no autowire.
	 * @param autowireMode the autowire mode to set.
	 * Must be one of the constants defined in this class.
	 * @see #AUTOWIRE_NO
	 * @see #AUTOWIRE_BY_NAME
	 * @see #AUTOWIRE_BY_TYPE
	 * @see #AUTOWIRE_CONSTRUCTOR
	 * @see #AUTOWIRE_AUTODETECT
	 */
	public void setAutowireMode(int autowireMode) {
		this.autowireMode = autowireMode;
	}

	/**
	 * Return the autowire mode as specified in the bean definition.
	 */
	public int getAutowireMode() {
		return this.autowireMode;
	}

	/**
	 * Return the resolved autowire code,
	 * (resolving AUTOWIRE_AUTODETECT to AUTOWIRE_CONSTRUCTOR or AUTOWIRE_BY_TYPE).
	 * @see #AUTOWIRE_AUTODETECT
	 * @see #AUTOWIRE_CONSTRUCTOR
	 * @see #AUTOWIRE_BY_TYPE
	 */
	public int getResolvedAutowireMode() {
		if (this.autowireMode == AUTOWIRE_AUTODETECT) {
			// Work out whether to apply setter autowiring or constructor autowiring.
			// If it has a no-arg constructor it's deemed to be setter autowiring,
			// otherwise we'll try constructor autowiring.
			Constructor[] constructors = getBeanClass().getConstructors();
			for (int i = 0; i < constructors.length; i++) {
				if (constructors[i].getParameterTypes().length == 0) {
					return AUTOWIRE_BY_TYPE;
				}
			}
			return AUTOWIRE_CONSTRUCTOR;
		}
		else {
			return this.autowireMode;
		}
	}

	/**
	 * Set the dependency check code.
	 * @param dependencyCheck the code to set.
	 * Must be one of the four constants defined in this class.
	 * @see #DEPENDENCY_CHECK_NONE
	 * @see #DEPENDENCY_CHECK_OBJECTS
	 * @see #DEPENDENCY_CHECK_SIMPLE
	 * @see #DEPENDENCY_CHECK_ALL
	 */
	public void setDependencyCheck(int dependencyCheck) {
		this.dependencyCheck = dependencyCheck;
	}

	/**
	 * Return the dependency check code.
	 */
	public int getDependencyCheck() {
		return this.dependencyCheck;
	}

	/**
	 * Set the names of the beans that this bean depends on being initialized.
	 * The bean factory will guarantee that these beans get initialized before.
	 * <p>Note that dependencies are normally expressed through bean properties or
	 * constructor arguments. This property should just be necessary for other kinds
	 * of dependencies like statics (*ugh*) or database preparation on startup.
	 */
	public void setDependsOn(String[] dependsOn) {
		this.dependsOn = dependsOn;
	}

	/**
	 * Return the bean names that this bean depends on.
	 */
	public String[] getDependsOn() {
		return this.dependsOn;
	}


	/**
	 * Specify constructor argument values for this bean.
	 */
	public void setConstructorArgumentValues(ConstructorArgumentValues constructorArgumentValues) {
		this.constructorArgumentValues =
				(constructorArgumentValues != null ? constructorArgumentValues : new ConstructorArgumentValues());
	}

	/**
	 * Return constructor argument values for this bean (never <code>null</code>).
	 */
	public ConstructorArgumentValues getConstructorArgumentValues() {
		return this.constructorArgumentValues;
	}

	/**
	 * Return if there are constructor argument values defined for this bean.
	 */
	public boolean hasConstructorArgumentValues() {
		return !this.constructorArgumentValues.isEmpty();
	}

	/**
	 * Specify property values for this bean, if any.
	 */
	public void setPropertyValues(MutablePropertyValues propertyValues) {
		this.propertyValues = (propertyValues != null ? propertyValues : new MutablePropertyValues());
	}

	/**
	 * Return property values for this bean (never <code>null</code>).
	 */
	public MutablePropertyValues getPropertyValues() {
		return this.propertyValues;
	}

	/**
	 * Specify method overrides for the bean, if any.
	 */
	public void setMethodOverrides(MethodOverrides methodOverrides) {
		this.methodOverrides = (methodOverrides != null ? methodOverrides : new MethodOverrides());
	}

	/**
	 * Return information about methods to be overridden by the IoC
	 * container. This will be empty if there are no method overrides.
	 * Never returns null.
	 */
	public MethodOverrides getMethodOverrides() {
		return this.methodOverrides;
	}


	/**
	 * Specify the factory bean to use, if any.
	 */
	public void setFactoryBeanName(String factoryBeanName) {
		this.factoryBeanName = factoryBeanName;
	}

	/**
	 * Returns the factory bean name, if any.
	 */
	public String getFactoryBeanName() {
		return this.factoryBeanName;
	}

	/**
	 * Specify a factory method, if any. This method will be invoked with
	 * constructor arguments, or with no arguments if none are specified.
	 * The static method will be invoked on the specifed factory bean,
	 * if any, or on the local bean class else.
	 * @param factoryMethodName static factory method name, or <code>null</code> if
	 * normal constructor creation should be used
	 * @see #getBeanClass
	 */
	public void setFactoryMethodName(String factoryMethodName) {
		this.factoryMethodName = factoryMethodName;
	}

	/**
	 * Return a factory method, if any.
	 */
	public String getFactoryMethodName() {
		return this.factoryMethodName;
	}

	/**
	 * Set the name of the initializer method. The default is <code>null</code>
	 * in which case there is no initializer method.
	 */
	public void setInitMethodName(String initMethodName) {
		this.initMethodName = initMethodName;
	}

	/**
	 * Return the name of the initializer method.
	 */
	public String getInitMethodName() {
		return this.initMethodName;
	}

	/**
	 * Specify whether or not the configured init method is the default.
	 * Default value is <code>false</code>.
	 * @see #setInitMethodName
	 */
	public void setEnforceInitMethod(boolean enforceInitMethod) {
		this.enforceInitMethod = enforceInitMethod;
	}

	/**
	 * Indicate whether the configured init method is the default.
	 * @see #getInitMethodName()
	 */
	public boolean isEnforceInitMethod() {
		return this.enforceInitMethod;
	}

	/**
	 * Set the name of the destroy method. The default is <code>null</code>
	 * in which case there is no destroy method.
	 */
	public void setDestroyMethodName(String destroyMethodName) {
		this.destroyMethodName = destroyMethodName;
	}

	/**
	 * Return the name of the destroy method.
	 */
	public String getDestroyMethodName() {
		return this.destroyMethodName;
	}

	/**
	 * Specify whether or not the configured destroy method is the default.
	 * Default value is <code>false</code>.
	 * @see #setDestroyMethodName
	 */
	public void setEnforceDestroyMethod(boolean enforceDestroyMethod) {
		this.enforceDestroyMethod = enforceDestroyMethod;
	}

	/**
	 * Indicate whether the configured destroy method is the default.
	 * @see #getDestroyMethodName
	 */
	public boolean isEnforceDestroyMethod() {
		return this.enforceDestroyMethod;
	}


	/**
	 * Set whether this bean definition is 'synthetic', that is, not defined
	 * by the application itself (for example, an infrastructure bean such
	 * as a helper for auto-proxying, created through <code>&ltaop:config&gt;</code>).
	 */
	public void setSynthetic(boolean synthetic) {
		this.synthetic = synthetic;
	}

	/**
	 * Return whether this bean definition is 'synthetic', that is,
	 * not defined by the application itself.
	 */
	public boolean isSynthetic() {
		return this.synthetic;
	}

	/**
	 * Set a description of the resource that this bean definition
	 * came from (for the purpose of showing context in case of errors).
	 */
	public void setResourceDescription(String resourceDescription) {
		this.resourceDescription = resourceDescription;
	}

	/**
	 * Return a description of the resource that this bean definition
	 * came from.
	 */
	public String getResourceDescription() {
		return this.resourceDescription;
	}

	/**
	 * Set the configuration source <code>Object</code> for this metadata element.
	 * <p>The exact type of the object will depend on the configuration mechanism used.
	 */
	public void setSource(Object source) {
		this.source = source;
	}

	public Object getSource() {
		return this.source;
	}

	/**
	 * Set the role hint for this <code>BeanDefinition</code>.
	 */
	public void setRole(int role) {
		this.role = role;
	}

	/**
	 * Return the role hint for this <code>BeanDefinition</code>.
	 */
	public int getRole() {
		return this.role;
	}


	/**
	 * Validate this bean definition.
	 * @throws BeanDefinitionValidationException in case of validation failure
	 */
	public void validate() throws BeanDefinitionValidationException {
		if (!getMethodOverrides().isEmpty() && getFactoryMethodName() != null) {
			throw new BeanDefinitionValidationException(
					"Cannot combine static factory method with method overrides: " +
					"the static factory method must create the instance");
		}

		if (hasBeanClass()) {
			prepareMethodOverrides();
		}
	}

	/**
	 * Validate and prepare the method overrides defined for this bean.
	 * Checks for existence of a method with the specified name.
	 * @throws BeanDefinitionValidationException in case of validation failure
	 */
	public void prepareMethodOverrides() throws BeanDefinitionValidationException {
		// Check that lookup methods exists.
		for (Iterator it = getMethodOverrides().getOverrides().iterator(); it.hasNext(); ) {
			MethodOverride mo = (MethodOverride) it.next();
			prepareMethodOverride(mo);
		}
	}

	/**
	 * Validate and prepare the given method override.
	 * Checks for existence of a method with the specified name,
	 * marking it as not overloaded if none found.
	 * @param mo the MethodOverride object to validate
	 * @throws BeanDefinitionValidationException in case of validation failure
	 */
	protected void prepareMethodOverride(MethodOverride mo) throws BeanDefinitionValidationException {
		int count = ClassUtils.getMethodCountForName(getBeanClass(), mo.getMethodName());
		if (count == 0) {
			throw new BeanDefinitionValidationException(
					"Invalid method override: no method with name '" + mo.getMethodName() +
					"' on class [" + getBeanClassName() + "]");
		}
		else if (count == 1) {
			// Mark override as not overloaded, to avoid the overhead of arg type checking.
			mo.setOverloaded(false);
		}
	}


	public boolean equals(Object other) {
		if (this == other) {
			return true;
		}
		if (!(other instanceof AbstractBeanDefinition)) {
			return false;
		}

		AbstractBeanDefinition that = (AbstractBeanDefinition) other;

		if (!ObjectUtils.nullSafeEquals(this.beanClass, that.beanClass)) return false;
		if (!ObjectUtils.nullSafeEquals(this.scope, that.scope)) return false;
		if (this.abstractFlag != that.abstractFlag) return false;
		if (this.lazyInit != that.lazyInit) return false;

		if (this.autowireCandidate != that.autowireCandidate) return false;
		if (this.autowireMode != that.autowireMode) return false;
		if (this.dependencyCheck != that.dependencyCheck) return false;
		if (!Arrays.equals(this.dependsOn, that.dependsOn)) return false;

		if (!ObjectUtils.nullSafeEquals(this.constructorArgumentValues, that.constructorArgumentValues)) return false;
		if (!ObjectUtils.nullSafeEquals(this.propertyValues, that.propertyValues)) return false;
		if (!ObjectUtils.nullSafeEquals(this.methodOverrides, that.methodOverrides)) return false;

		if (!ObjectUtils.nullSafeEquals(this.factoryBeanName, that.factoryBeanName)) return false;
		if (!ObjectUtils.nullSafeEquals(this.factoryMethodName, that.factoryMethodName)) return false;
		if (!ObjectUtils.nullSafeEquals(this.initMethodName, that.initMethodName)) return false;
		if (this.enforceInitMethod != that.enforceInitMethod) return false;
		if (!ObjectUtils.nullSafeEquals(this.destroyMethodName, that.destroyMethodName)) return false;
		if (this.enforceDestroyMethod != that.enforceDestroyMethod) return false;

		if (!ObjectUtils.nullSafeEquals(this.resourceDescription, that.resourceDescription)) return false;
		if (!ObjectUtils.nullSafeEquals(this.source, that.source)) return false;
		if (this.role != that.role) return false;

		return super.equals(other);
	}

	public int hashCode() {
		int hashCode = ObjectUtils.nullSafeHashCode(this.beanClass);
		hashCode = 29 * hashCode + ObjectUtils.nullSafeHashCode(this.scope);
		hashCode = 29 * hashCode + ObjectUtils.nullSafeHashCode(this.constructorArgumentValues);
		hashCode = 29 * hashCode + ObjectUtils.nullSafeHashCode(this.propertyValues);
		hashCode = 29 * hashCode + ObjectUtils.nullSafeHashCode(this.factoryBeanName);
		hashCode = 29 * hashCode + ObjectUtils.nullSafeHashCode(this.factoryMethodName);
		hashCode = 29 * hashCode + super.hashCode();
		return hashCode;
	}

	public String toString() {
		StringBuffer sb = new StringBuffer("class [");
		sb.append(getBeanClassName()).append("]");
		sb.append("; scope=").append(this.scope);
		sb.append("; abstract=").append(this.abstractFlag);
		sb.append("; lazyInit=").append(this.lazyInit);
		sb.append("; autowireCandidate=").append(this.autowireCandidate);
		sb.append("; autowireMode=").append(this.autowireMode);
		sb.append("; dependencyCheck=").append(this.dependencyCheck);
		sb.append("; factoryBeanName=").append(this.factoryBeanName);
		sb.append("; factoryMethodName=").append(this.factoryMethodName);
		sb.append("; initMethodName=").append(this.initMethodName);
		sb.append("; destroyMethodName=").append(this.destroyMethodName);
		if (this.resourceDescription != null) {
			sb.append("; defined in ").append(this.resourceDescription);
		}
		return sb.toString();
	}

}