Method Detail

• acceptChildren

  public void acceptChildren​(ExpressionVisitor visitor)

  Visits the children of this Expression. This method can be used to optimize traversing the children since a new list is not created every time Expression.children() is called.

  This does not traverse the Expression sub-hierarchy, use a subclass of AbstractTraverseChildrenVisitor in order to traverse the entire sub-hierarchy.

  Parameters:

  visitor - The visitor to visit the children of this object.

• buildCollectionExpression

  public final CollectionExpression buildCollectionExpression()

  Creates a new CollectionExpression that will wrap the single order by item.

  Returns:

  The single order by item represented by a temporary collection

• findQueryBNF

  public final JPQLQueryBNF findQueryBNF​(Expression expression)

  Retrieves the JPQLQueryBNF that represents the fragment of this Expression that was used when parsing the given Expression.

  Specified by:

  findQueryBNF in interface Expression

  Overrides:

  findQueryBNF in class AbstractExpression

  Parameters:

  expression - The Expression that is a descendant of this one

  Returns:

  The JPQLQueryBNF that was used to parse the given expression

• getActualIdentifier

  public final String getActualIdentifier()

  Returns the actual identifier found in the string representation of the JPQL query, which has the actual case that was used.

  Returns:

  The actual identifier that was actually parsed

• getOrderByItems

  public final Expression getOrderByItems()

  Returns the Expression representing the list of items to order.

  Returns:

  The expression representing the list of items to order

• hasOrderByItems

  public final boolean hasOrderByItems()

  Determines whether the list of items to order was parsed.

  Returns:

  true the list of items to order was parsed; false otherwise

• hasSpaceAfterIdentifier

  public final boolean hasSpaceAfterIdentifier()

  Determines whether a whitespace was parsed after the identifier.

  Returns:

  true if a whitespace was parsed after the identifier; false otherwise