/** * Checks if instance is of specified class * * @param object Instance which would be checked * @param className Class name with which it would be checked * @return true if Instance is of specified class */ public static boolean objectInstanceOf(Object object, String className) { AssertUtils.assertNotNull(object); boolean result = false; Class clazz = object.getClass(); if (clazz.getName().equals(className) == true) { result = true; } return result; }
/** * Checks if Instance extends specified Class {@link Class#isAssignableFrom(Class)} is not used as * Class might not be available and String representation can only be used * * @param object Instance which would be checked * @param superClassName Class with which it would be checked * @return true if Instance extends specified Parent */ public static boolean objectExtends(Object object, String superClassName) { AssertUtils.assertNotNull(object); boolean result = false; Class superClass = object.getClass().getSuperclass(); if (superClass.getName().equals(superClassName) == true) { result = true; } return result; }
/** * Checks if Instance implements specified Interface {@link Class#isAssignableFrom(Class)} is not * used as Interface might not be available and String representation can only be used * * @param object Instance which would be checked * @param interfaceClass Interface with which it would be checked * @return true if Instance implements specified Interface */ public static boolean objectImplements(Object object, String interfaceClass) { AssertUtils.assertNotNull(object); boolean result = false; Class[] interfaces = object.getClass().getInterfaces(); for (int i = 0; i < interfaces.length; i++) { if (interfaces[i].getName().equals(interfaceClass) == true) { result = true; break; } } return result; }
/** * Checks if instance can be cast to specified Class * * @param object Instance which would be checked * @param className Class name with which it would be checked * @return true if Instance can be cast to specified class * @throws org.midao.jdbc.core.exception.MjdbcException */ public static boolean objectAssignableTo(Object object, String className) throws MjdbcException { AssertUtils.assertNotNull(object); boolean result = false; Class clazz = null; try { clazz = Class.forName(className); } catch (ClassNotFoundException ex) { throw new MjdbcException(ex); } result = clazz.isAssignableFrom(object.getClass()); return result; }
/** * Returns class field value Is used to return Constants * * @param object Class field of which would be returned * @param fieldName field name * @return field value * @throws org.midao.jdbc.core.exception.MjdbcException if field is not present or access is * prohibited */ public static Object returnField(Object object, String fieldName) throws MjdbcException { AssertUtils.assertNotNull(object); Object result = null; Field field = null; try { field = object.getClass().getField(fieldName); result = field.get(object); } catch (NoSuchFieldException ex) { throw new MjdbcException(ex); } catch (IllegalAccessException ex) { throw new MjdbcException(ex); } return result; }
/** * Checks if value is standard or custom bean * * @param value value which would be checked * @return true - if custom bean */ public static boolean isCustomBean(Object value) { assertNotNull(value); return !value.getClass().getName().startsWith("java"); }