public final class KeywordExpression extends AbstractExpression
TRUE, FALSE or NULL.
EclipseLink 2.5 added two new identifiers: MINVALUE and MAXVALUE.
COMMA, DOT, DOUBLE_QUOTE, LEFT_CURLY_BRACKET, LEFT_PARENTHESIS, NOT_DEFINED, RIGHT_CURLY_BRACKET, RIGHT_PARENTHESIS, SINGLE_QUOTE, SPACE, UNDERSCOREABS, 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 |
|---|
KeywordExpression(AbstractExpression parent,
String identifier)
Creates a new
KeywordExpression. |
| 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. |
protected void |
addOrderedChildrenTo(List<Expression> children)
Adds the children of this
AbstractExpression to the given list. |
String |
getActualIdentifier()
Returns the actual identifier found in the string representation of the JPQL query, which has
the actual case that was used.
|
JPQLQueryBNF |
getQueryBNF()
Returns the BNF of this
Expression. |
String |
getText()
Returns the encapsulated text of this
AbstractExpression, which can be used in various
ways, it can be a keyword, a literal, etc. |
protected void |
parse(WordParser wordParser,
boolean tolerant)
Parses the query by starting at the current position, which is part of the given
WordParser. |
protected void |
toParsedText(StringBuilder writer,
boolean actual)
Generates a string representation of this
Expression, including its children,
if it has any. |
acceptUnknownVisitor, acceptUnknownVisitor, addChildrenTo, buildExpressionFromFallingBack, buildNullExpression, buildStringExpression, buildStringExpression, buildUnknownExpression, calculatePosition, children, findFallBackExpressionFactory, findQueryBNF, getExpressionFactory, getExpressionRegistry, getGrammar, getIdentifierVersion, getJPAVersion, getLength, getOffset, getParent, getQueryBNF, getRoot, handleAggregate, handleCollection, isAncestor, isIdentifier, isNull, isParsingComplete, isTolerant, isUnknown, isVirtual, orderedChildren, parse, parseUsingExpressionFactory, populatePosition, rebuildActualText, rebuildParsedText, setParent, setText, shouldParseWithFactoryFirst, shouldSkipLiteral, toActualText, toParsedText, toStringpublic KeywordExpression(AbstractExpression parent, String identifier)
KeywordExpression.parent - The parent of this expressionidentifier - The identifier represented by 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.protected void addOrderedChildrenTo(List<Expression> children)
AbstractExpression to the given list.addOrderedChildrenTo in class AbstractExpressionchildren - The list used to store the string representation of this AbstractExpressionpublic String getActualIdentifier()
public JPQLQueryBNF getQueryBNF()
Expression.JPQLQueryBNF, which represents the grammar of this Expressionpublic String getText()
AbstractExpression, which can be used in various
ways, it can be a keyword, a literal, etc.getText in class AbstractExpressionAbstractExpression, the literal it
encapsulates or an empty stringprotected void parse(WordParser wordParser, boolean tolerant)
WordParser.parse in class AbstractExpressionwordParser - The text to parse based on the current position of the cursortolerant - Determines whether the parsing system should be tolerant, meaning if it should
try to parse invalid or incomplete queriesprotected void toParsedText(StringBuilder writer, boolean actual)
Expression, including its children,
if it has any.toParsedText in class AbstractExpressionwriter - The buffer used to append this Expression's string representationactual - Determines whether the string representation should represent what was parsed,
i.e. include any "virtual" whitespace (such as ending whitespace) and the actual case of the
JPQL identifiersCopyright © 2007–2021 Eclipse.org - EclipseLink Project. All rights reserved.