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

- Interface Summary
  Interface | Description
  --- | ---
  FieldActivator | Interface for a field activator.
  ValueStore | Interface for storing values associated to an identity constraint.

- Class Summary
  Class | Description
  --- | ---
  Field | Schema identity constraint field.
  Field.XPath | Field XPath.
  IdentityConstraint | Base class of Schema identity constraint.
  KeyRef | Schema key reference identity constraint.
  Selector | Schema identity constraint selector.
  Selector.XPath | Schema identity constraint selector XPath expression.
  UniqueOrKey | Schema unique or key identity constraint.
  XPathMatcher | XPath matcher.

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