Package com.aspectran.core.util

Class BeanDescriptor

  • public class BeanDescriptor
extends java.lang.Object
    This class represents a cached set of bean property information that allows for easy mapping between property names and getter/setter methods.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static int clearCache()
      Clear the ClassDescriptor cache.
      java.lang.String[] getDistinctMethodNames()
      Gets the class methods' names that is unique.
      java.lang.reflect.Method getGetter​(java.lang.String name)
      Gets the getter for a property as a Method object.
      java.lang.Class<?> getGetterType​(java.lang.String name)
      Gets the type for a property getter.
      static BeanDescriptor getInstance​(java.lang.Class<?> type)
      Gets an instance of ClassDescriptor for the specified class.
      java.lang.String[] getReadablePropertyNames()
      Gets an array of the readable properties for an object.
      java.lang.String[] getReadablePropertyNamesWithoutNonSerializable()  
      java.lang.reflect.Method getSetter​(java.lang.String name)
      Gets the setter for a property as a Method object.
      <T extends java.lang.annotation.Annotation>
      T      		 getSetterAnnotation​(java.lang.reflect.Method method, java.lang.Class<T> annotationType)
      Invokes the annotation of the given type.
      <T extends java.lang.annotation.Annotation>
      T      		 getSetterAnnotation​(java.lang.String name, java.lang.Class<T> annotationType)
      Invokes the annotation of the given type.
      java.lang.Class<?> getSetterType​(java.lang.String name)
      Gets the type for a property setter.
      java.lang.String[] getWritablePropertyNames()
      Gets an array of the writable properties for an object.
      boolean hasReadableProperty​(java.lang.String propertyName)
      Check to see if a class has a readable property by name.
      boolean hasWritableProperty​(java.lang.String propertyName)
      Check to see if a class has a writable property by name.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • getGetter

        public java.lang.reflect.Method getGetter​(java.lang.String name)
                                   throws java.lang.NoSuchMethodException
        Gets the getter for a property as a Method object.
        Parameters:
        name - the name of the property
        Returns:
        the getter Method
        Throws:
        java.lang.NoSuchMethodException - when a getter method cannot be found

      • getSetter

        public java.lang.reflect.Method getSetter​(java.lang.String name)
                                   throws java.lang.NoSuchMethodException
        Gets the setter for a property as a Method object.
        Parameters:
        name - the name of the property
        Returns:
        the setter method
        Throws:
        java.lang.NoSuchMethodException - when a setter method cannot be found

      • getGetterType

        public java.lang.Class<?> getGetterType​(java.lang.String name)
                                 throws java.lang.NoSuchMethodException
        Gets the type for a property getter.
        Parameters:
        name - the name of the property
        Returns:
        the Class of the property getter
        Throws:
        java.lang.NoSuchMethodException - when a getter method cannot be found

      • getSetterType

        public java.lang.Class<?> getSetterType​(java.lang.String name)
                                 throws java.lang.NoSuchMethodException
        Gets the type for a property setter.
        Parameters:
        name - the name of the property
        Returns:
        the Class of the property setter
        Throws:
        java.lang.NoSuchMethodException - when a setter method cannot be found

      • getSetterAnnotation

        public <T extends java.lang.annotation.Annotation> T getSetterAnnotation​(java.lang.String name,
                                                                         java.lang.Class<T> annotationType)
                                                                  throws java.lang.NoSuchMethodException
        Invokes the annotation of the given type.
        Type Parameters:
        T - the annotation type
        Parameters:
        name - the given setter name
        annotationType - the annotation type to look for
        Returns:
        the annotation object, or null if not found
        Throws:
        java.lang.NoSuchMethodException - when a setter method cannot be found

      • getSetterAnnotation

        public <T extends java.lang.annotation.Annotation> T getSetterAnnotation​(java.lang.reflect.Method method,
                                                                         java.lang.Class<T> annotationType)
        Invokes the annotation of the given type.
        Type Parameters:
        T - the annotation type
        Parameters:
        method - the given setter method
        annotationType - the annotation type to look for
        Returns:
        the annotation object, or null if not found

      • getReadablePropertyNames

        public java.lang.String[] getReadablePropertyNames()
        Gets an array of the readable properties for an object.
        Returns:
        the array

      • getReadablePropertyNamesWithoutNonSerializable

        public java.lang.String[] getReadablePropertyNamesWithoutNonSerializable()

      • getWritablePropertyNames

        public java.lang.String[] getWritablePropertyNames()
        Gets an array of the writable properties for an object.
        Returns:
        the array

      • hasWritableProperty

        public boolean hasWritableProperty​(java.lang.String propertyName)
        Check to see if a class has a writable property by name.
        Parameters:
        propertyName - the name of the property to check
        Returns:
        true if the object has a writable property by the name

      • hasReadableProperty

        public boolean hasReadableProperty​(java.lang.String propertyName)
        Check to see if a class has a readable property by name.
        Parameters:
        propertyName - the name of the property to check
        Returns:
        true if the object has a readable property by the name

      • getDistinctMethodNames

        public java.lang.String[] getDistinctMethodNames()
        Gets the class methods' names that is unique.
        Returns:
        the distinct method names

      • getInstance

        public static BeanDescriptor getInstance​(java.lang.Class<?> type)
        Gets an instance of ClassDescriptor for the specified class.
        Parameters:
        type - the class for which to lookup the method cache
        Returns:
        the method cache for the class

      • clearCache

        public static int clearCache()
        Clear the ClassDescriptor cache.
        Returns:
        the number of cached ClassDescriptor cleared