content: /*
   *  This file is part of AndroidIDE.
   *
   *  AndroidIDE is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  AndroidIDE is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  /*
   * reserved comment block
   * DO NOT REMOVE OR ALTER!
   */
  /*
   * Copyright 2001, 2002,2004 The Apache Software Foundation.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package jaxp.sun.org.apache.xerces.internal.impl.dv.xs;
  
  import jaxp.sun.org.apache.xerces.internal.impl.dv.InvalidDatatypeValueException;
  import jaxp.sun.org.apache.xerces.internal.impl.dv.ValidationContext;
  
  /**
   * All primitive types plus ID/IDREF/ENTITY/INTEGER are derived from this abstract
   * class. It provides extra information XSSimpleTypeDecl requires from each
   * type: allowed facets, converting String to actual value, check equality,
   * comparison, etc.
   *
   * @xerces.internal
   *
   * @author Neeraj Bajaj, Sun Microsystems, inc.
   * @author Sandy Gao, IBM
   *
   */
  public abstract class TypeValidator {
  
      // which facets are allowed for this type
      public abstract short getAllowedFacets();
  
      // convert a string to an actual value. for example,
      // for number types (decimal, double, float, and types derived from them),
      // get the BigDecimal, Double, Flout object.
      // for some types (string and derived), they just return the string itself
      public abstract Object getActualValue(String content, ValidationContext context)
          throws InvalidDatatypeValueException;
  
      // for ID/IDREF/ENTITY types, do some extra checking after the value is
      // checked to be valid with respect to both lexical representation and
      // facets
      public void checkExtraRules(Object value, ValidationContext context) throws InvalidDatatypeValueException {
      }
  
      // the following methods might not be supported by every DV.
      // but XSSimpleTypeDecl should know which type supports which methods,
      // and it's an *internal* error if a method is called on a DV that
      // doesn't support it.
  
      //order constants
      public static final short LESS_THAN     = -1;
      public static final short EQUAL         = 0;
      public static final short GREATER_THAN  = 1;
      public static final short INDETERMINATE = 2;
  
      // where there is distinction between identity and equality, this method
      // will be overwritten
      // checks whether the two values are identical; for ex, this distinguishes
      // -0.0 from 0.0
      public boolean isIdentical (Object value1, Object value2) {
          return value1.equals(value2);
      }
  
      // check the order relation between the two values
      // the parameters are in compiled form (from getActualValue)
      public int compare(Object value1, Object value2) {
          return -1;
      }
  
      // get the length of the value
      // the parameters are in compiled form (from getActualValue)
      public int getDataLength(Object value) {
          return (value instanceof String) ? ((String)value).length() : -1;
      }
  
      // get the number of digits of the value
      // the parameters are in compiled form (from getActualValue)
      public int getTotalDigits(Object value) {
          return -1;
      }
  
      // get the number of fraction digits of the value
      // the parameters are in compiled form (from getActualValue)
      public int getFractionDigits(Object value) {
          return -1;
      }
  
      // check whether the character is in the range 0x30 ~ 0x39
      public static final boolean isDigit(char ch) {
          return ch >= '0' && ch <= '9';
      }
  
      // if the character is in the range 0x30 ~ 0x39, return its int value (0~9),
      // otherwise, return -1
      public static final int getDigit(char ch) {
          return isDigit(ch) ? ch - '0' : -1;
      }
  
  } // interface TypeValidator
  