public final class OrderByClause extends AbstractExpression
orderby_clause ::= ORDER BY orderby_item
{, orderby_item
}*
COMMA, DOT, DOUBLE_QUOTE, LEFT_CURLY_BRACKET, LEFT_PARENTHESIS, NOT_DEFINED, RIGHT_CURLY_BRACKET, RIGHT_PARENTHESIS, SINGLE_QUOTE, SPACE, UNDERSCORE
ABS, ALL, AND, ANY, AS, ASC, AVG, BETWEEN, BIT_LENGTH, BOTH, CASE, CHAR_LENGTH, CHARACTER_LENGTH, CLASS, COALESCE, CONCAT, COUNT, CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP, DELETE, DELETE_FROM, DESC, DIFFERENT, DISTINCT, DIVISION, ELSE, EMPTY, END, ENTRY, EQUAL, ESCAPE, EXISTS, FALSE, FETCH, FROM, FUNC, GREATER_THAN, GREATER_THAN_OR_EQUAL, GROUP_BY, HAVING, IN, INDEX, INNER, INNER_JOIN, INNER_JOIN_FETCH, IS, IS_EMPTY, IS_NOT_EMPTY, IS_NOT_NULL, IS_NULL, JOIN, JOIN_FETCH, KEY, LEADING, LEFT, LEFT_JOIN, LEFT_JOIN_FETCH, LEFT_OUTER_JOIN, LEFT_OUTER_JOIN_FETCH, LENGTH, LIKE, LOCATE, LOWER, LOWER_THAN, LOWER_THAN_OR_EQUAL, MAX, MEMBER, MEMBER_OF, MIN, MINUS, MOD, MULTIPLICATION, NAMED_PARAMETER, NEW, NOT, NOT_BETWEEN, NOT_EXISTS, NOT_IN, NOT_LIKE, NOT_MEMBER, NOT_MEMBER_OF, NULL, NULLIF, OBJECT, OF, OR, ORDER_BY, OUTER, PLUS, POSITION, POSITIONAL_PARAMETER, QUOTE, SELECT, SET, SIZE, SOME, SQRT, SUBSTRING, SUM, THEN, TRAILING, TREAT, TRIM, TRUE, TYPE, UNKNOWN, UPDATE, UPPER, VALUE, WHEN, WHERE
Modifier and Type | Method and Description |
---|---|
void |
accept(ExpressionVisitor visitor)
Visits this
Expression by the given visitor . |
void |
acceptChildren(ExpressionVisitor visitor)
Visits the children of this
Expression . |
CollectionExpression |
buildCollectionExpression()
Creates a new
CollectionExpression that will wrap the single order by item. |
Expression |
getOrderByItems()
Returns the
Expression representing the list of items to order. |
JPQLQueryBNF |
getQueryBNF()
Returns the BNF of this
Expression . |
boolean |
hasOrderByItems()
Determines whether the list of items to order was parsed.
|
boolean |
hasSpaceAfterOrderBy()
Determines whether a whitespace was parsed after ORDER BY.
|
children, findQueryBNF, getChildren, getParent, getRoot, identifierRole, identifiers, identifierVersion, isAncestor, isIdentifier, isVirtual, orderedChildren, queryBNF, toActualText, toParsedText, toString
public void accept(ExpressionVisitor visitor)
Expression
by the given visitor
.visitor
- The visitor
to visit this objectpublic void acceptChildren(ExpressionVisitor visitor)
Expression
. This method can be used to optimize traversing
the children since a new list is not created every time Expression.children()
or Expression.getChildren()
is called.
This does not traverse the Expression
sub-hierarchy, use an subclass of
AbstractTraverseChildrenVisitor
in order to traverse the entire sub-hierarchy.
visitor
- The visitor
to visit the children of this object.public CollectionExpression buildCollectionExpression()
CollectionExpression
that will wrap the single order by item.public Expression getOrderByItems()
Expression
representing the list of items to order.public JPQLQueryBNF getQueryBNF()
Expression
.getQueryBNF
in class AbstractExpression
JPQLQueryBNF
, which represents the grammar of this Expression
public boolean hasOrderByItems()
true
the list of items to order was parsed; false
otherwisepublic boolean hasSpaceAfterOrderBy()
true
if a whitespace was parsed after ORDER BY; false
otherwiseEclipseLink 2.3.2, "build v20111125-r10461" API Reference