Method Details

• getBeanPropertyDescriptors

  public static List<PropertyDescriptor> getBeanPropertyDescriptors(Class<?> beanType) throws IntrospectionException

  Returns the property descriptors of a class, a record, or an interface. For an interface, superinterfaces are also iterated as Introspector does not take them into account (Oracle Java bug 4275879), but in that case, both the setter and the getter for a property must be in the same interface and should not be overridden in subinterfaces for the discovery to work correctly.

  NOTE : This utility method relies on introspection (and returns PropertyDescriptor) which is a part of java.beans package. The latter package could require bigger JDK in the future (with Java 9+). So it may be changed in the future.

  For interfaces, the iteration is depth first and the properties of superinterfaces are returned before those of their subinterfaces.

  Parameters:

  beanType - the type whose properties to query

  Returns:

  a list of property descriptors of the given type

  Throws:

  IntrospectionException - if the introspection fails

• getPropertyType

  public static Class<?> getPropertyType(Class<?> beanType, String propertyName) throws IntrospectionException

  Returns the type of the property with the given name and declaring class. The property name may refer to a nested property, e.g. "property.subProperty" or "property.subProperty1.subProperty2". The property must have a public read method (or a chain of read methods in case of a nested property).

  Parameters:

  beanType - the type declaring the property

  propertyName - the name of the property

  Returns:

  the property type

  Throws:

  IntrospectionException - if the introspection fails

• getPropertyDescriptor

  public static PropertyDescriptor getPropertyDescriptor(Class<?> beanType, String propertyName) throws IntrospectionException

  Returns the property descriptor for the property of the given name and declaring class. The property name may refer to a nested property, e.g. "property.subProperty" or "property.subProperty1.subProperty2". The property must have a public read method (or a chain of read methods in case of a nested property).

  Parameters:

  beanType - the type declaring the property

  propertyName - the name of the property

  Returns:

  the corresponding descriptor

  Throws:

  IntrospectionException - if the introspection fails

• checkBeanValidationAvailable

  public static boolean checkBeanValidationAvailable()

  Returns whether an implementation of JSR-303 version 1.0 or 1.1 is present on the classpath. If this method returns false, trying to create a BeanValidator instance will throw an IllegalStateException. If an implementation is not found, logs a level FINE message the first time it is run.

  Returns:

  true if bean validation is available, false otherwise.