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 699892 2008-09-28 21:08:27Z mrglavas $
  Author:
    Jeffrey Rodriguez, IBM, Sandy Gao, IBM

  # INTERNAL:

    Usage of this class is not supported. It may be altered or removed at any time.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `IDDatatypeValidator()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `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
        `InvalidDatatypeValueException`
      See Also:
        `InvalidDatatypeValueException`

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