public final class UpdateItem extends AbstractExpression
new_value
specified for an update operation must be compatible in type with the
field to which it is assigned.
update_item ::= [identification_variable.]{state_field | single_valued_association_field} = new_value
UpdateClause
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, AS_OF, ASC, AVG, BETWEEN, BIT_LENGTH, BOTH, CASE, CAST, CHAR_LENGTH, CHARACTER_LENGTH, CLASS, COALESCE, COLUMN, CONCAT, CONNECT_BY, COUNT, CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP, DELETE, DELETE_FROM, DESC, DIFFERENT, DISTINCT, DIVISION, ELSE, EMPTY, END, ENTRY, EQUAL, ESCAPE, EXCEPT, EXISTS, EXTRACT, FALSE, FETCH, FIRST, FROM, FUNC, FUNCTION, GREATER_THAN, GREATER_THAN_OR_EQUAL, GROUP_BY, HAVING, IN, INDEX, INNER, INNER_JOIN, INNER_JOIN_FETCH, INTERSECT, IS, IS_EMPTY, IS_NOT_EMPTY, IS_NOT_NULL, IS_NULL, JOIN, JOIN_FETCH, KEY, LAST, 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_EQUAL, NOT_EXISTS, NOT_IN, NOT_LIKE, NOT_MEMBER, NOT_MEMBER_OF, NULL, NULLIF, NULLS, NULLS_FIRST, NULLS_LAST, OBJECT, OF, ON, OPERATOR, OR, ORDER_BY, ORDER_SIBLINGS_BY, OUTER, PLUS, POSITION, POSITIONAL_PARAMETER, QUOTE, REGEXP, SCN, SELECT, SET, SIZE, SOME, SQL, SQRT, START_WITH, SUBSTRING, SUM, TABLE, THEN, TIMESTAMP, TRAILING, TREAT, TRIM, TRUE, TYPE, UNION, UNKNOWN, UPDATE, UPPER, VALUE, WHEN, WHERE
Constructor and Description |
---|
UpdateItem(AbstractExpression parent)
Creates a new
UpdateItem . |
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 . |
JPQLQueryBNF |
findQueryBNF(Expression expression)
Retrieves the
JPQLQueryBNF that represents the fragment of this Expression
that was used when parsing the given Expression . |
Expression |
getNewValue()
Returns the
Expression representing the new value, which is the new value of the property. |
JPQLQueryBNF |
getQueryBNF()
Returns the BNF of this
Expression . |
Expression |
getStateFieldPathExpression()
Returns the
Expression representing the state field path expression, which is the
property that should get updated. |
boolean |
hasEqualSign()
Determines whether the equal sign was parsed or not.
|
boolean |
hasNewValue()
Determines whether the new value section of the query was parsed.
|
boolean |
hasSpaceAfterEqualSign()
Determines whether a whitespace was parsed after the equal sign or not.
|
boolean |
hasSpaceAfterStateFieldPathExpression()
Determines whether a whitespace was parsed after the state field path expression not.
|
boolean |
hasStateFieldPathExpression()
Determines whether the state field was parsed.
|
children, getGrammar, getIdentifierVersion, getLength, getOffset, getParent, getQueryBNF, getRoot, isAncestor, orderedChildren, populatePosition, toActualText, toParsedText, toString
public UpdateItem(AbstractExpression parent)
UpdateItem
.parent
- The parent of this expressionpublic void accept(ExpressionVisitor visitor)
Expression
by the given visitor
.visitor
- The ExpressionVisitor
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()
is called.
This does not traverse the Expression
sub-hierarchy, use a subclass of
AbstractTraverseChildrenVisitor
in order to traverse the entire sub-hierarchy.
visitor
- The visitor
to visit the children of this object.public JPQLQueryBNF findQueryBNF(Expression expression)
JPQLQueryBNF
that represents the fragment of this Expression
that was used when parsing the given Expression
.findQueryBNF
in interface Expression
findQueryBNF
in class AbstractExpression
expression
- The Expression
that is a descendant of this oneJPQLQueryBNF
that was used to parse the given expressionpublic Expression getNewValue()
Expression
representing the new value, which is the new value of the property.public JPQLQueryBNF getQueryBNF()
Expression
.JPQLQueryBNF
, which represents the grammar of this Expression
public Expression getStateFieldPathExpression()
Expression
representing the state field path expression, which is the
property that should get updated.public boolean hasEqualSign()
true
if the equal sign was parsed; false
otherwisepublic boolean hasNewValue()
true
the new value was parsed; false
if nothing was parsedpublic boolean hasSpaceAfterEqualSign()
true
if there was a whitespace after the equal sign; false
otherwisepublic boolean hasSpaceAfterStateFieldPathExpression()
true
if there was a whitespace after the state field path expression;
false
otherwisepublic boolean hasStateFieldPathExpression()
true
the state field was parsed; false
otherwiseEclipseLink 2.6.3, "build v20160428-59c81c5" API Reference