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Oracle Fusion Middleware Java API Reference for Oracle TopLink 11g Release 1 (11.1.1) E28847-01 |
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java.lang.Object
org.eclipse.persistence.jpa.internal.jpql.parser.JPQLQueryBNF
org.eclipse.persistence.jpa.internal.jpql.parser.JoinAssociationPathExpressionBNF
public final class JoinAssociationPathExpressionBNF
The query BNF for a join association path expression.
join_association_path_expression ::= join_collection_valued_path_expression | join_single_valued_path_expression
Field Summary | |
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static java.lang.String |
ID The unique identifier of this BNF rule. |
Constructor Summary | |
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JoinAssociationPathExpressionBNF() Creates a new JoinAssociationPathExpressionBNF . |
Method Summary | |
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(package private) java.lang.String |
getFallbackBNFId() When parsing the query and no JPQLQueryBNFs can help to parse the query, then it will fall back on this one. |
(package private) java.lang.String |
getFallbackExpressionFactoryId() Returns the unique identifier of the ExpressionFactory to use when the fall back BNF ID is not null . |
(package private) void |
initialize() Initializes this BNF rule by registering child BNF rules and expression factories . |
Methods inherited from class org.eclipse.persistence.jpa.internal.jpql.parser.JPQLQueryBNF |
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addChildren, children, expressionFactory, expressionFactoryIds, getId, handleAggregate, handleCollection, hasIdentifier, identifiers, isCompound, nonCompoundChildren, registerChild, registerExpressionFactory, toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final java.lang.String ID
Constructor Detail |
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JoinAssociationPathExpressionBNF()
JoinAssociationPathExpressionBNF
.Method Detail |
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java.lang.String getFallbackBNFId()
JPQLQueryBNFs
can help to parse the query, then it will fall back on this one.getFallbackBNFId
in class JPQLQueryBNF
JPQLQueryBNF
to use in the last resortjava.lang.String getFallbackExpressionFactoryId()
ExpressionFactory
to use when the fall back BNF ID is not null
. This will be used to parse a portion of the query when the registered expression factories
cannot parse it.
Note: This method is only called if JPQLQueryBNF.getFallbackBNFId()
does not return null
.
getFallbackExpressionFactoryId
in class JPQLQueryBNF
ExpressionFactory
void initialize()
BNF rules
and expression factories
.initialize
in class JPQLQueryBNF
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