Class ElementDeclState

All Implemented Interfaces:
ExpressionOwner, ContentHandler

public class ElementDeclState extends ExpressionWithChildState
used to parse <element > element without ref attribute. this state uses ExpressionWithChildState to collect content model of this element declaration.
  • Field Details

    • idcs

      protected final Vector idcs
      identity constraints found in this element.
  • Constructor Details

    • ElementDeclState

      public ElementDeclState()
  • Method Details

    • createChildState

      protected State createChildState(StartTagInfo tag)
      Description copied from class: SimpleState
      creates appropriate child state object for this element
      Overrides:
      createChildState in class ExpressionWithChildState
    • initialExpression

      protected Expression initialExpression()
      Description copied from class: ExpressionWithChildState
      sets initial pattern
      Overrides:
      initialExpression in class ExpressionWithChildState
    • resolveTypeRef

      protected Expression resolveTypeRef(String typeQName)
      If this element declaration has @type, then this method is called to resolve it. Since the type refered to may not be processed yet, a late binding is needed here.
    • castExpression

      protected Expression castExpression(Expression halfCastedExpression, Expression newChildExpression)
      Description copied from class: ExpressionWithChildState
      combines half-made expression and newly found child expression into the expression.

      Say this container has three child expression exp1,exp2, and exp3. Then, the expression of this state will be made by the following method invocations.

         annealExpression(
           castExpression(
             castExpression(
               castExpression(null,exp1), exp2), exp3 ) )
       
      Specified by:
      castExpression in class ExpressionWithChildState
    • defaultExpression

      protected Expression defaultExpression()
      Description copied from class: ExpressionWithChildState
      computes default expression. this method is called before annealExpression when no child expression is given during parsing. return null to signal an error.
      Overrides:
      defaultExpression in class ExpressionWithChildState
    • annealExpression

      protected Expression annealExpression(Expression contentType)
      Description copied from class: ExpressionWithChildState
      performs final wrap-up and returns a fully created Expression object that represents this element.
      Overrides:
      annealExpression in class ExpressionWithChildState
    • annealDeclaration

      protected Expression annealDeclaration(ElementDeclExp exp)
      This method is called after this class finishes augmenting ElementDeclExp. Derived classes can override this method and modify an ElementDeclExp further.
    • isGlobal

      public boolean isGlobal()
      Returns true if this element declaration is a global element declaration.
    • onIdentityConstraint

      protected void onIdentityConstraint(IdentityConstraint idc)
      this method is called when an identity constraint declaration is found.