public abstract class AbstractDoubleEncapsulatedExpression extends AbstractEncapsulatedExpression
Expression
takes care of parsing an expression that encapsulates two expressions
separated by a comma.
expression ::= <identifier>(first_expression, second_expression)
ConcatExpression
,
ModExpression
,
NullIfExpression
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
Modifier and Type | Method and Description |
---|---|
void |
acceptChildren(ExpressionVisitor visitor)
Visits the children of this
Expression . |
CollectionExpression |
buildCollectionExpression()
Creates a new
CollectionExpression that will wrap the first and second expressions. |
JPQLQueryBNF |
findQueryBNF(Expression expression)
Retrieves the
JPQLQueryBNF that represents the fragment of this Expression
that was used when parsing the given Expression . |
Expression |
getFirstExpression()
Returns the
Expression that represents the first expression. |
Expression |
getSecondExpression()
Returns the
Expression that represents the second expression. |
boolean |
hasComma()
Determines whether the comma was parsed after the first expression.
|
boolean |
hasEncapsulatedExpression()
Determines whether something was parsed after the left parenthesis.
|
boolean |
hasFirstExpression()
Determines whether the first expression of the query was parsed.
|
boolean |
hasSecondExpression()
Determines whether the second expression of the query was parsed.
|
boolean |
hasSpaceAfterComma()
Determines whether a whitespace was parsed after the comma.
|
abstract java.lang.String |
parameterExpressionBNF(int index)
Returns the BNF to be used to parse one of the encapsulated expression.
|
getActualIdentifier, getIdentifier, hasLeftParenthesis, hasRightParenthesis, hasSpaceAfterIdentifier
children, getGrammar, getIdentifierVersion, getLength, getOffset, getParent, getQueryBNF, getRoot, isAncestor, orderedChildren, populatePosition, toActualText, toParsedText, toString
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
accept, getQueryBNF
public 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 final CollectionExpression buildCollectionExpression()
CollectionExpression
that will wrap the first and second expressions.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 final Expression getFirstExpression()
Expression
that represents the first expression.public final Expression getSecondExpression()
Expression
that represents the second expression.public final boolean hasComma()
true
if a comma was parsed after the first expression; false
otherwisepublic boolean hasEncapsulatedExpression()
hasEncapsulatedExpression
in class AbstractEncapsulatedExpression
true
if something was parsed; false
otherwisepublic final boolean hasFirstExpression()
true
if the first expression was parsed; false
if it was
not parsedpublic final boolean hasSecondExpression()
true
if the second expression was parsed; false
if it was
not parsedpublic final boolean hasSpaceAfterComma()
true
if there was a whitespace after the comma; false
otherwisepublic abstract java.lang.String parameterExpressionBNF(int index)
index
- The position of the encapsulated Expression
that needs to be parsed
within the parenthesis, which starts at position 0EclipseLink 2.6.3, "build v20160428-59c81c5" API Reference