Documentation of 'org.jhotdraw.util.Methods' Java class
Methods
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org.jhotdraw.util

Class Methods


  • public class Methods
extends java.lang.Object
    Methods contains convenience methods for method invocations using java.lang.reflect.

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method and Description
      static java.lang.Object invoke(java.lang.Object obj, java.lang.String methodName)
      Invokes the specified accessible parameterless method if it exists.
      static java.lang.Object invoke(java.lang.Object obj, java.lang.String methodName, boolean newValue)
      Invokes the specified setter method if it exists.
      static java.lang.Object invoke(java.lang.Object obj, java.lang.String methodName, java.lang.Class[] clazz, java.lang.Object... newValue)
      Invokes the specified setter method if it exists.
      static java.lang.Object invoke(java.lang.Object obj, java.lang.String methodName, java.lang.Class clazz, java.lang.Object newValue)
      Invokes the specified setter method if it exists.
      static java.lang.Object invoke(java.lang.Object obj, java.lang.String methodName, float newValue)
      Invokes the specified setter method if it exists.
      static java.lang.Object invoke(java.lang.Object obj, java.lang.String methodName, int newValue)
      Invokes the specified method if it exists.
      static java.lang.Object invoke(java.lang.Object obj, java.lang.String methodName, java.lang.String stringParameter)
      Invokes the specified accessible method with a string parameter if it exists.
      static boolean invokeGetter(java.lang.Object obj, java.lang.String methodName, boolean defaultValue)
      Invokes the specified getter method if it exists.
      static int invokeGetter(java.lang.Object obj, java.lang.String methodName, int defaultValue)
      Invokes the specified getter method if it exists.
      static long invokeGetter(java.lang.Object obj, java.lang.String methodName, long defaultValue)
      Invokes the specified getter method if it exists.
      static java.lang.Object invokeGetter(java.lang.Object obj, java.lang.String methodName, java.lang.Object defaultValue)
      Invokes the specified getter method if it exists.
      static void invokeIfExists(java.lang.Object obj, java.lang.String methodName)
      Invokes the specified setter method if it exists.
      static void invokeIfExists(java.lang.Object obj, java.lang.String methodName, boolean newValue)
      Invokes the specified method if it exists.
      static void invokeIfExists(java.lang.Object obj, java.lang.String methodName, java.lang.Class clazz, java.lang.Object newValue)
      Invokes the specified setter method if it exists.
      static void invokeIfExists(java.lang.Object obj, java.lang.String methodName, float newValue)
      Invokes the specified setter method if it exists.
      static void invokeIfExistsWithEnum(java.lang.Object obj, java.lang.String methodName, java.lang.String enumClassName, java.lang.String enumValueName)
      Invokes the specified setter method if it exists.
      static java.lang.Object invokeStatic(java.lang.Class clazz, java.lang.String methodName)
      Invokes the specified accessible parameterless method if it exists.
      static java.lang.Object invokeStatic(java.lang.Class clazz, java.lang.String methodName, java.lang.Class[] types, java.lang.Object[] values)
      Invokes the specified parameterless method if it exists.
      static java.lang.Object invokeStatic(java.lang.String clazz, java.lang.String methodName)
      Invokes the specified accessible parameterless method if it exists.
      static java.lang.Object invokeStatic(java.lang.String clazz, java.lang.String methodName, java.lang.Class[] types, java.lang.Object[] values)
      Invokes the specified parameterless method if it exists.
      static java.lang.Object invokeStatic(java.lang.String clazz, java.lang.String methodName, java.lang.Class[] types, java.lang.Object[] values, java.lang.Object defaultValue)
      Invokes the specified parameterless method if it exists.
      static boolean invokeStaticGetter(java.lang.Class clazz, java.lang.String methodName, boolean defaultValue)
      Invokes the specified getter method if it exists.

      • Methods inherited from class java.lang.Object

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

    • Method Detail

      • invoke

        public static java.lang.Object invoke(java.lang.Object obj,
                                      java.lang.String methodName)
                               throws java.lang.NoSuchMethodException
        Invokes the specified accessible parameterless method if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.
        Returns:
        The return value of the method.
        Throws:
        java.lang.NoSuchMethodException

      • invoke

        public static java.lang.Object invoke(java.lang.Object obj,
                                      java.lang.String methodName,
                                      java.lang.String stringParameter)
                               throws java.lang.NoSuchMethodException
        Invokes the specified accessible method with a string parameter if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.
        stringParameter - The String parameter
        Returns:
        The return value of the method or METHOD_NOT_FOUND.
        Throws:
        java.lang.NoSuchMethodException

      • invokeStatic

        public static java.lang.Object invokeStatic(java.lang.Class clazz,
                                            java.lang.String methodName)
                                     throws java.lang.NoSuchMethodException
        Invokes the specified accessible parameterless method if it exists.
        Parameters:
        clazz - The class on which to invoke the method.
        methodName - The name of the method.
        Returns:
        The return value of the method or METHOD_NOT_FOUND.
        Throws:
        java.lang.NoSuchMethodException

      • invokeStatic

        public static java.lang.Object invokeStatic(java.lang.String clazz,
                                            java.lang.String methodName)
                                     throws java.lang.NoSuchMethodException
        Invokes the specified accessible parameterless method if it exists.
        Parameters:
        clazz - The class on which to invoke the method.
        methodName - The name of the method.
        Returns:
        The return value of the method.
        Throws:
        java.lang.NoSuchMethodException

      • invokeStatic

        public static java.lang.Object invokeStatic(java.lang.Class clazz,
                                            java.lang.String methodName,
                                            java.lang.Class[] types,
                                            java.lang.Object[] values)
                                     throws java.lang.NoSuchMethodException
        Invokes the specified parameterless method if it exists.
        Parameters:
        clazz - The class on which to invoke the method.
        methodName - The name of the method.
        types - The parameter types.
        values - The parameter values.
        Returns:
        The return value of the method.
        Throws:
        java.lang.NoSuchMethodException

      • invokeStatic

        public static java.lang.Object invokeStatic(java.lang.String clazz,
                                            java.lang.String methodName,
                                            java.lang.Class[] types,
                                            java.lang.Object[] values)
                                     throws java.lang.NoSuchMethodException
        Invokes the specified parameterless method if it exists.
        Parameters:
        clazz - The class on which to invoke the method.
        methodName - The name of the method.
        types - The parameter types.
        values - The parameter values.
        Returns:
        The return value of the method.
        Throws:
        java.lang.NoSuchMethodException

      • invokeStatic

        public static java.lang.Object invokeStatic(java.lang.String clazz,
                                            java.lang.String methodName,
                                            java.lang.Class[] types,
                                            java.lang.Object[] values,
                                            java.lang.Object defaultValue)
        Invokes the specified parameterless method if it exists.
        Parameters:
        clazz - The class on which to invoke the method.
        methodName - The name of the method.
        types - The parameter types.
        values - The parameter values.
        defaultValue - The default value.
        Returns:
        The return value of the method or the default value if the method does not exist or is not accessible.

      • invokeGetter

        public static int invokeGetter(java.lang.Object obj,
                               java.lang.String methodName,
                               int defaultValue)
        Invokes the specified getter method if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.
        defaultValue - This value is returned, if the method does not exist.
        Returns:
        The value returned by the getter method or the default value.

      • invokeGetter

        public static long invokeGetter(java.lang.Object obj,
                                java.lang.String methodName,
                                long defaultValue)
        Invokes the specified getter method if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.
        defaultValue - This value is returned, if the method does not exist.
        Returns:
        The value returned by the getter method or the default value.

      • invokeGetter

        public static boolean invokeGetter(java.lang.Object obj,
                                   java.lang.String methodName,
                                   boolean defaultValue)
        Invokes the specified getter method if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.
        defaultValue - This value is returned, if the method does not exist.
        Returns:
        The value returned by the getter method or the default value.

      • invokeGetter

        public static java.lang.Object invokeGetter(java.lang.Object obj,
                                            java.lang.String methodName,
                                            java.lang.Object defaultValue)
        Invokes the specified getter method if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.
        defaultValue - This value is returned, if the method does not exist.
        Returns:
        The value returned by the getter method or the default value.

      • invokeStaticGetter

        public static boolean invokeStaticGetter(java.lang.Class clazz,
                                         java.lang.String methodName,
                                         boolean defaultValue)
        Invokes the specified getter method if it exists.
        Parameters:
        clazz - The object on which to invoke the method.
        methodName - The name of the method.
        defaultValue - This value is returned, if the method does not exist.
        Returns:
        The value returned by the getter method or the default value.

      • invoke

        public static java.lang.Object invoke(java.lang.Object obj,
                                      java.lang.String methodName,
                                      boolean newValue)
                               throws java.lang.NoSuchMethodException
        Invokes the specified setter method if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.
        Throws:
        java.lang.NoSuchMethodException

      • invoke

        public static java.lang.Object invoke(java.lang.Object obj,
                                      java.lang.String methodName,
                                      int newValue)
                               throws java.lang.NoSuchMethodException
        Invokes the specified method if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.
        Throws:
        java.lang.NoSuchMethodException

      • invoke

        public static java.lang.Object invoke(java.lang.Object obj,
                                      java.lang.String methodName,
                                      float newValue)
                               throws java.lang.NoSuchMethodException
        Invokes the specified setter method if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.
        Throws:
        java.lang.NoSuchMethodException

      • invoke

        public static java.lang.Object invoke(java.lang.Object obj,
                                      java.lang.String methodName,
                                      java.lang.Class clazz,
                                      java.lang.Object newValue)
                               throws java.lang.NoSuchMethodException
        Invokes the specified setter method if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.
        Throws:
        java.lang.NoSuchMethodException

      • invoke

        public static java.lang.Object invoke(java.lang.Object obj,
                                      java.lang.String methodName,
                                      java.lang.Class[] clazz,
                                      java.lang.Object... newValue)
                               throws java.lang.NoSuchMethodException
        Invokes the specified setter method if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.
        Throws:
        java.lang.NoSuchMethodException

      • invokeIfExists

        public static void invokeIfExists(java.lang.Object obj,
                                  java.lang.String methodName)
        Invokes the specified setter method if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.

      • invokeIfExists

        public static void invokeIfExists(java.lang.Object obj,
                                  java.lang.String methodName,
                                  float newValue)
        Invokes the specified setter method if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.

      • invokeIfExists

        public static void invokeIfExists(java.lang.Object obj,
                                  java.lang.String methodName,
                                  boolean newValue)
        Invokes the specified method if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.

      • invokeIfExists

        public static void invokeIfExists(java.lang.Object obj,
                                  java.lang.String methodName,
                                  java.lang.Class clazz,
                                  java.lang.Object newValue)
        Invokes the specified setter method if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.

      • invokeIfExistsWithEnum

        public static void invokeIfExistsWithEnum(java.lang.Object obj,
                                          java.lang.String methodName,
                                          java.lang.String enumClassName,
                                          java.lang.String enumValueName)
        Invokes the specified setter method if it exists.
        Parameters:
        obj - The object on which to invoke the method.
        methodName - The name of the method.
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