| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.jena.ext.xerces.impl.dv.xs; |
| |
| import org.apache.jena.ext.xerces.impl.dv.InvalidDatatypeValueException; |
| import org.apache.jena.ext.xerces.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. |
| * |
| * {@literal @xerces.internal} |
| * |
| * @author Neeraj Bajaj, Sun Microsystems, inc. |
| * @author Sandy Gao, IBM |
| * |
| * @version $Id: TypeValidator.java 446745 2006-09-15 21:43:58Z mrglavas $ |
| */ |
| 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 |