# Package org.apache.xerces.impl.xs.assertion

- Interface Summary
  Interface | Description
  --- | ---
  XMLAssertHandler | The implementation of this interface will invoke an external XPath engine, that would evaluate the XPath 2.0 expressions for XML Schema 1.1 assertions.
  XSAssert | This interface represents the XML Schema 1.1 assertion component.
  XSAssertionXPath2Value | An interface defining methods to work with XPath 2.0 dynamic context variable "$value" that is needed for assertions evaluation.

- Class Summary
  Class | Description
  --- | ---
  Test | Representation of XML Schema 1.1 assertion "test" attribute.
  XMLAssertAdapter | A convenience implementation of the assertions interface.
  XSAssertConstants | A class containing few constants related to XML Schema 1.1 assertion implementation.
  XSAssertImpl | XML Schema 1.1 'assertion' component.
  XSAssertionXPath2ValueImpl | This class defines methods to work with XPath 2.0 dynamic context variable "$value", that is needed for XSD assertions evaluation.

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