## org.apache.xerces.impl.xs
Class XSAttributeUseImpl

    java.lang.Object
      |
      +--org.apache.xerces.impl.xs.XSAttributeUseImpl

All Implemented Interfaces:
  org.apache.xerces.xs.XSAttributeUse, org.apache.xerces.xs.XSObject

public class XSAttributeUseImpl
extends java.lang.Object
implements org.apache.xerces.xs.XSAttributeUse

The XML representation for an attribute use schema component is a local <attribute> element information item

# INTERNAL:

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

Version:
  $Id: XSAttributeUseImpl.java 1024038 2010-10-18 22:06:35Z sandygao $
Author:
  Sandy Gao, IBM

Field Summary
`org.apache.xerces.xs.XSObjectList` `fAnnotations`
`XSAttributeDecl` `fAttrDecl`
`short` `fConstraintType`
`ValidatedInfo` `fDefault`
`short` `fUse`

Constructor Summary
`XSAttributeUseImpl()`

Method Summary
`java.lang.Object` `getActualVC()` Value Constraint: Binding specific actual constraint value or `null` if the value is in error or there is no value constraint.
`short` `getActualVCType()` The actual constraint value built-in datatype, e.g.
`org.apache.xerces.xs.XSObjectList` `getAnnotations()` Optional.
`org.apache.xerces.xs.XSAttributeDeclaration` `getAttrDeclaration()` {attribute declaration} provides the attribute declaration itself, which will in turn determine the simple type definition used.
`short` `getConstraintType()` Value Constraint: one of default, fixed.
`java.lang.String` `getConstraintValue()` Value Constraint: The actual value (with respect to the {type definition}).
`org.apache.xerces.xs.ShortList` `getItemValueTypes()` In the case the actual constraint value represents a list, i.e.
`java.lang.String` `getName()` The `name` of this `XSObject` depending on the `XSObject` type.
`java.lang.String` `getNamespace()` The namespace URI of this node, or `null` if it is unspecified.
`org.apache.xerces.xs.XSNamespaceItem` `getNamespaceItem()` A namespace schema information item corresponding to the target namespace of the component, if it is globally declared; or `null` otherwise.
`boolean` `getRequired()` {required} determines whether this use of an attribute declaration requires an appropriate attribute information item to be present, or merely allows it.
`short` `getType()` Get the type of the object, i.e ELEMENT_DECLARATION.
`org.apache.xerces.xs.XSValue` `getValueConstraintValue()` The actual value of the default or fixed value constraint.
`void` `reset()`

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

Field Detail

### fAttrDecl

    public XSAttributeDecl fAttrDecl

### fUse

    public short fUse

### fConstraintType

    public short fConstraintType

### fDefault

    public ValidatedInfo fDefault

### fAnnotations

    public org.apache.xerces.xs.XSObjectList fAnnotations

Constructor Detail

### XSAttributeUseImpl

    public XSAttributeUseImpl()

Method Detail

### reset

    public void reset()

### getType

    public short getType()

  Get the type of the object, i.e ELEMENT_DECLARATION.
  Specified by:
    `getType` in interface `org.apache.xerces.xs.XSObject`

### getName

    public java.lang.String getName()

  The `name` of this `XSObject` depending on the `XSObject` type.
  Specified by:
    `getName` in interface `org.apache.xerces.xs.XSObject`

### getNamespace

    public java.lang.String getNamespace()

  The namespace URI of this node, or `null` if it is unspecified. defines how a namespace URI is attached to schema components.
  Specified by:
    `getNamespace` in interface `org.apache.xerces.xs.XSObject`

### getRequired

    public boolean getRequired()

  {required} determines whether this use of an attribute declaration requires an appropriate attribute information item to be present, or merely allows it.
  Specified by:
    `getRequired` in interface `org.apache.xerces.xs.XSAttributeUse`

### getAttrDeclaration

    public org.apache.xerces.xs.XSAttributeDeclaration getAttrDeclaration()

  {attribute declaration} provides the attribute declaration itself, which will in turn determine the simple type definition used.
  Specified by:
    `getAttrDeclaration` in interface `org.apache.xerces.xs.XSAttributeUse`

### getConstraintType

    public short getConstraintType()

  Value Constraint: one of default, fixed.
  Specified by:
    `getConstraintType` in interface `org.apache.xerces.xs.XSAttributeUse`

### getConstraintValue

    public java.lang.String getConstraintValue()

  Value Constraint: The actual value (with respect to the {type definition}).
  Specified by:
    `getConstraintValue` in interface `org.apache.xerces.xs.XSAttributeUse`

### getNamespaceItem

    public org.apache.xerces.xs.XSNamespaceItem getNamespaceItem()

  Description copied from interface: `org.apache.xerces.xs.XSObject`
  A namespace schema information item corresponding to the target namespace of the component, if it is globally declared; or `null` otherwise.
  Specified by:
    `getNamespaceItem` in interface `org.apache.xerces.xs.XSObject`
  See Also:
    `XSObject.getNamespaceItem()`

### getActualVC

    public java.lang.Object getActualVC()

  Description copied from interface: `org.apache.xerces.xs.XSAttributeUse`
  Value Constraint: Binding specific actual constraint value or `null` if the value is in error or there is no value constraint.
  Specified by:
    `getActualVC` in interface `org.apache.xerces.xs.XSAttributeUse`
  Following copied from interface: `org.apache.xerces.xs.XSAttributeUse`
  Throws:
    `org.apache.xerces.xs.XSException` - NOT_SUPPORTED_ERR: Raised if the implementation does not support this method.

### getActualVCType

    public short getActualVCType()

  Description copied from interface: `org.apache.xerces.xs.XSAttributeUse`
  The actual constraint value built-in datatype, e.g. `STRING_DT, SHORT_DT`. If the type definition of this value is a list type definition, this method returns `LIST_DT`. If the type definition of this value is a list type definition whose item type is a union type definition, this method returns `LISTOFUNION_DT`. To query the actual constraint value of the list or list of union type definitions use `itemValueTypes`. If the `actualNormalizedValue` is `null`, this method returns `UNAVAILABLE_DT`.
  Specified by:
    `getActualVCType` in interface `org.apache.xerces.xs.XSAttributeUse`
  Following copied from interface: `org.apache.xerces.xs.XSAttributeUse`
  Throws:
    `org.apache.xerces.xs.XSException` - NOT_SUPPORTED_ERR: Raised if the implementation does not support this method.

### getItemValueTypes

    public org.apache.xerces.xs.ShortList getItemValueTypes()

  Description copied from interface: `org.apache.xerces.xs.XSAttributeUse`
  In the case the actual constraint value represents a list, i.e. the `actualValueType` is `LIST_DT`, the returned array consists of one type kind which represents the itemType. If the actual constraint value represents a list type definition whose item type is a union type definition, i.e. `LISTOFUNION_DT`, for each actual constraint value in the list the array contains the corresponding memberType kind. For examples, see `ItemPSVI.itemValueTypes`.
  Specified by:
    `getItemValueTypes` in interface `org.apache.xerces.xs.XSAttributeUse`
  Following copied from interface: `org.apache.xerces.xs.XSAttributeUse`
  Throws:
    `org.apache.xerces.xs.XSException` - NOT_SUPPORTED_ERR: Raised if the implementation does not support this method.

### getValueConstraintValue

    public org.apache.xerces.xs.XSValue getValueConstraintValue()

  Description copied from interface: `org.apache.xerces.xs.XSAttributeUse`
  The actual value of the default or fixed value constraint.
  Specified by:
    `getValueConstraintValue` in interface `org.apache.xerces.xs.XSAttributeUse`

### getAnnotations

    public org.apache.xerces.xs.XSObjectList getAnnotations()

  Optional. Annotations.
  Specified by:
    `getAnnotations` in interface `org.apache.xerces.xs.XSAttributeUse`

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