EmbeddedIdColumnEvaluator.java 文件源码

@Override
public void evaluate(Method method, EvaluatorChain chain) {
    if (method.isAnnotationPresent(EmbeddedId.class)) {
        Map<String, AttributeOverride> overrides = getAttributeOverrides(method);

        Class<?> embeddedClz = method.getReturnType();
        BeanInfo info = null;
        try {
            info = Introspector.getBeanInfo(embeddedClz);
        } catch (IntrospectionException e) {
            throw new RuntimeException(e);
        }
        for (String propertyName : overrides.keySet()) {
            for (PropertyDescriptor propDesc : info.getPropertyDescriptors()) {
                if (propDesc.getName().equals(propertyName)) {
                    CopyAttribute attribute = new CopyAttribute();
                    attribute.getMethods().add(method);
                    attribute.getMethods().add(propDesc.getReadMethod());
                    attribute.setColumnName(overrides.get(propertyName).column().name());
                    chain.add(attribute);
                    break;
                }
            }
        }
    } else {
        chain.doNext();
    }
}