|
EclipseLink 2.5.0, build 'v20130507-3faac2b' API Reference | ||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||
java.lang.Objectorg.eclipse.persistence.jpa.jpql.parser.AbstractExpression
org.eclipse.persistence.jpa.jpql.parser.AbstractConditionalClause
org.eclipse.persistence.jpa.jpql.parser.OnClause
public final class OnClause
Returns an expression that allows a join ON clause to be defined.
New to EclipseLink 2.4 and JPA 2.1.
join_condition ::= ON conditional_expression
Example: SELECT e FROM Employee e LEFT JOIN e.projects p ON p.budget > 10000
| Field Summary |
|---|
| Fields inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractExpression |
|---|
COMMA, DOT, DOUBLE_QUOTE, LEFT_CURLY_BRACKET, LEFT_PARENTHESIS, NOT_DEFINED, RIGHT_CURLY_BRACKET, RIGHT_PARENTHESIS, SINGLE_QUOTE, SPACE, UNDERSCORE |
| Constructor Summary | |
|---|---|
OnClause(AbstractExpression parent)
Creates a new OnClause. |
|
| Method Summary | |
|---|---|
void |
accept(ExpressionVisitor visitor)
Visits this Expression by the given visitor. |
JPQLQueryBNF |
getQueryBNF()
Returns the BNF of this Expression. |
protected boolean |
isParsingComplete(WordParser wordParser,
java.lang.String word,
Expression expression)
Determines whether the parsing is complete based on what is left in the given text. |
| Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractConditionalClause |
|---|
acceptChildren, addChildrenTo, addOrderedChildrenTo, buildCollectionExpression, findQueryBNF, getActualIdentifier, getConditionalExpression, getIdentifier, hasConditionalExpression, hasSpaceAfterIdentifier, parse, shouldSkipLiteral, toParsedText |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public OnClause(AbstractExpression parent)
OnClause.
parent - The parent of this expression| Method Detail |
|---|
public void accept(ExpressionVisitor visitor)
Expression by the given visitor.
visitor - The ExpressionVisitor to visit this objectpublic JPQLQueryBNF getQueryBNF()
Expression.
JPQLQueryBNF, which represents the grammar of this Expressionprotected boolean isParsingComplete(WordParser wordParser, java.lang.String word, Expression expression)
isParsingComplete in class AbstractConditionalClausewordParser - The text to parse based on the current position of the cursorword - The word that was retrieved from the given text, which is the first word in the textexpression - The Expression that has already been parsed
true if the text no longer can't be parsed by the current expression;
false if more can be parsed
|
EclipseLink 2.5.0, build 'v20130507-3faac2b' API Reference | ||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||