## org.apache.xerces.impl.dv.dtd
Class IDDatatypeValidator

    java.lang.Object
      |
      +--org.apache.xerces.impl.dv.dtd.IDDatatypeValidator

All Implemented Interfaces:
  DatatypeValidator

Direct Known Subclasses:
  XML11IDDatatypeValidator

public class IDDatatypeValidator
extends java.lang.Object
implements DatatypeValidator

IDDatatypeValidator - ID represents the ID attribute type from XML 1.0 Recommendation. The value space od ID is the set of all strings that match the NCName production and have been used in an XML document. The lexical space of ID is the set of all strings that match the NCName production.

The value space of ID is scoped to a specific instance document.

The following constraint applies: An ID must not appear more than once in an XML document as a value of this type; i.e., ID values must uniquely identify the elements which bear them.

Version:
  $Id: IDDatatypeValidator.java,v 1.6 2002/07/18 20:48:43 sandygao Exp $
Author:
  Jeffrey Rodriguez, IBM, Sandy Gao, IBM

Constructor Summary
`IDDatatypeValidator()`

Method Summary
`void` `validate(java.lang.String content, ValidationContext context)` Checks that "content" string is valid ID value.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### IDDatatypeValidator

    public IDDatatypeValidator()

Method Detail

### validate

    public void validate(java.lang.String content,
                         ValidationContext context)
                  throws InvalidDatatypeValueException

  Checks that "content" string is valid ID value. If invalid a Datatype validation exception is thrown.
  Specified by:
    `validate` in interface `DatatypeValidator`
  Parameters:
    `content` - the string value that needs to be validated
    `context` - the validation context
  Throws:
    `InvalidDatatypeException` - if the content is invalid according to the rules for the validators
  See Also:
    `InvalidDatatypeValueException`

Copyright © 1999-2003 Apache XML Project. All Rights Reserved.