type.js

这是一个关于java的JSP页面中使用象Swing组件的一个库文件.

function uiUtil_Type() {
  this._super();
}
uiUtil_Type = uiUtil_Object.declareUtil(uiUtil_Type, uiUtil_Object);
uiUtil_Type.isDefined = function(value) {
  return ("undefined" != (typeof value));
};
uiUtil_Type.isFunction = function(value) {
  return ("function" == (typeof value));
};
uiUtil_Type.isObject = function(value) {
  return ("object" == (typeof value));
};
uiUtil_Type.isString = function(value) {
  return ("string" == (typeof value));
};
uiUtil_Type.isBoolean = function(value) {
  return ("boolean" == (typeof value));
};
uiUtil_Type.isNumber = function(value) {
  return ("number" == (typeof value)) && !isNaN(value);
};
uiUtil_Type.isInt = function(value) {
  if (!uiUtil_Type.isNumber(value)) {
    return false;
  }
  return (new String(value).indexOf('.') < 0);
};
uiUtil_Type.isDouble = function(value) {
  if (!uiUtil_Type.isNumber(value)) {
    return false;
  }
  return (new String(value).indexOf('.') >= 0);
};
uiUtil_Type.getTypeName = function(value) {
  if (!uiUtil_Type.isDefined(value)) {
    return "undefined";
  }
  else if (value == null) {
    return "null";
  }
  else if (uiUtil_Type.isHtmlNode(value)) {
    return value.nodeName.toLowerCase();
  }
  if (!uiUtil_Type.isFunction(value)) {
    return (typeof value);
  }
  return uiUtil_Object.getClassName(value);
};
uiUtil_Type.isHtmlNode = function(value) {
  return value.nodeName != null;
};
uiUtil_Type.isElementNode = function(value) {
  return value.nodeType == 1;
};
uiUtil_Type.isTextNode = function(value) {
  return value.nodeType == 3;
};
uiUtil_Type.getValue = function(value, defaultValue) {
  if (value == null) {
    return defaultValue;
  }
  return value;
};
uiUtil_Type.getString = function(value, defaultValue) {
  if (uiUtil_Type.isString(value)) {
    return value;
  }
  if (uiUtil_Type.isDefined(value)) {  
    throw new uiUtil_IllegalArgumentException(
        "Invalid string value: " + value);
  }
  return defaultValue;
};
uiUtil_Type.getBoolean = function(value, defaultValue) {
  if (uiUtil_Type.isBoolean(value)) {
    return value;
  }
  if (uiUtil_Type.isDefined(value)) {  
    throw new uiUtil_IllegalArgumentException(
        "Invalid boolean value: " + value);
  }
  return defaultValue;
};
uiUtil_Type.getInt = function(value, defaultValue) {
  if (uiUtil_Type.isInt(value)) {
    return value;
  }
  if (uiUtil_Type.isDefined(value)) {  
    throw new uiUtil_IllegalArgumentException(
        "Invalid integer value: " + value);
  }
  return defaultValue;
};
uiUtil_Type.getComparator = function(optComparator) {
  if (optComparator == null) {
    return new uiUtil_Type.Comparator();
  }
  return optComparator;
};
uiUtil_Type.getEqualityTester = function(optTester) {
  if (optTester == null) {
    return new uiUtil_Type.EqualityTester();
  }
  return optTester;
};
function uiUtil_Type$EqualityTester() {
  this._super();
}
uiUtil_Type.EqualityTester = uiUtil_Object.declareClass(
    uiUtil_Type$EqualityTester, uiUtil_Object, false);
uiUtil_Type.EqualityTester.prototype.equals = function(first, second) {
  return first == second;
};
function uiUtil_Type$Comparator() {
  this._super();
}
uiUtil_Type.Comparator = uiUtil_Object.declareClass(
    uiUtil_Type$Comparator, uiUtil_Object, false);
uiUtil_Type.Comparator.prototype.compare = function(first, second) {
  if (first < second) {
    return -1;
  }
  else if (first > second) {
    return 1;
  }
  return 0;
};