Package org.jibx.binding.model

Class ClassUtils

  • public class ClassUtils
extends java.lang.Object
    Utilities for working with class, field, or method information.
    Author:
    Dennis M. Sosnoski

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private static java.util.HashMap s_signatureMap
      Map for signatures corresponding to class names.
      private static java.util.HashMap s_variantMap
      Map for primitive type signature variants.

    • Constructor Summary

      Constructors 
      Constructor Description
      ClassUtils()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static IClassItem findStaticMethod​(java.lang.String name, java.lang.String[] sigs, ValidationContext vctx)
      Get static method by fully qualified name.
      static IClassItem findVirtualMethod​(java.lang.String name, java.lang.String[] sigs, ValidationContext vctx)
      Get virtual method by fully qualified name.
      static java.lang.String getSignature​(java.lang.String type)
      Gets the signature string corresponding to a type.
      static java.lang.String[] getSignatureVariants​(java.lang.String name, ValidationContext vctx)
      Get all variant signatures for a fully qualified class name.
      static boolean isAssignable​(java.lang.String from, java.lang.String to, ValidationContext vctx)
      Check if a value of one type can be directly assigned to another type.
      static boolean isPrimitive​(java.lang.String type)
      Check if type name is a primitive.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • s_variantMap

        private static java.util.HashMap s_variantMap
        Map for primitive type signature variants.

      • s_signatureMap

        private static java.util.HashMap s_signatureMap
        Map for signatures corresponding to class names.

    • Constructor Detail

      • ClassUtils

        public ClassUtils()

    • Method Detail

      • isPrimitive

        public static boolean isPrimitive​(java.lang.String type)
        Check if type name is a primitive.
        Parameters:
        type -
        Returns:
        true if a primitive, false if not

      • findVirtualMethod

        public static IClassItem findVirtualMethod​(java.lang.String name,
                                           java.lang.String[] sigs,
                                           ValidationContext vctx)
        Get virtual method by fully qualified name. This splits the class name from the method name, finds the class, and then tries to find a matching method name in that class or a superclass.
        Parameters:
        name - fully qualified class and method name
        sigs - possible method signatures
        vctx - validation context (used for class lookup)
        Returns:
        information for the method, or null if not found

      • findStaticMethod

        public static IClassItem findStaticMethod​(java.lang.String name,
                                          java.lang.String[] sigs,
                                          ValidationContext vctx)
        Get static method by fully qualified name. This splits the class name from the method name, finds the class, and then tries to find a matching method name in that class.
        Parameters:
        name - fully qualified class and method name
        sigs - possible method signatures
        vctx - validation context (used for class lookup)
        Returns:
        information for the method, or null if not found

      • getSignatureVariants

        public static java.lang.String[] getSignatureVariants​(java.lang.String name,
                                                      ValidationContext vctx)
        Get all variant signatures for a fully qualified class name. The returned array gives all signatures (for interfaces or classes) which instances of the class can match.
        Parameters:
        name - fully qualified class name
        vctx - validation context (used for class lookup)
        Returns:
        possible signature variations for instances of the class

      • getSignature

        public static java.lang.String getSignature​(java.lang.String type)
        Gets the signature string corresponding to a type. The base for the type may be a primitive or class name, and may include trailing array brackets.
        Parameters:
        type - type name
        Returns:
        signature string for type

      • isAssignable

        public static boolean isAssignable​(java.lang.String from,
                                   java.lang.String to,
                                   ValidationContext vctx)
        Check if a value of one type can be directly assigned to another type. This is basically the equivalent of the instanceof operator, but with application to primitive types as well as object types.
        Parameters:
        from - fully qualified class name of initial type
        to - fully qualified class name of assignment type
        vctx - validation context (used for class lookup)
        Returns:
        true if assignable, false if not