Oracle Fusion Middleware Java API Reference for Oracle TopLink
11g Release 1 (11.1.1)

E28847-01


org.eclipse.persistence.jpa.internal.jpql.parser
Class DeleteClauseRangeVariableDeclarationBNF

java.lang.Object
  extended by org.eclipse.persistence.jpa.internal.jpql.parser.JPQLQueryBNF
      extended by org.eclipse.persistence.jpa.internal.jpql.parser.DeleteClauseRangeVariableDeclarationBNF


public final class DeleteClauseRangeVariableDeclarationBNF
extends JPQLQueryBNF

The query BNF for a range variable declaration expression used by the DELETE clause, which accepts collection and aggregate expression, which is used by invalid queries.

BNF: range_variable_declaration ::= entity_name [AS] identification_variable
Since:
2.3
Version:
2.3
Author:
Pascal Filion

Field Summary
static java.lang.String ID
          The unique identifier of this BNF rule.
 
Constructor Summary
DeleteClauseRangeVariableDeclarationBNF()
          Creates a new DeleteClauseRangeVariableDeclarationBNF.
 
Method Summary
(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.
 boolean handleAggregate()
          Determines whether the Expression handles a collection of sub-expressions that are aggregated by logical or arithmetic operators.
 boolean handleCollection()
          Determines whether the Expression handles a collection of sub-expressions that are separated by commas.
 
Methods inherited from class org.eclipse.persistence.jpa.internal.jpql.parser.JPQLQueryBNF
addChildren, children, expressionFactory, expressionFactoryIds, getFallbackExpressionFactoryId, getId, hasIdentifier, identifiers, initialize, isCompound, nonCompoundChildren, registerChild, registerExpressionFactory, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

ID

public static final java.lang.String ID
The unique identifier of this BNF rule.
See Also:
Constant Field Values
Constructor Detail

DeleteClauseRangeVariableDeclarationBNF

DeleteClauseRangeVariableDeclarationBNF()
Creates a new DeleteClauseRangeVariableDeclarationBNF.
Method Detail

getFallbackBNFId

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.
Overrides:
getFallbackBNFId in class JPQLQueryBNF
Returns:
The unique identifier of the JPQLQueryBNF to use in the last resort

handleAggregate

public boolean handleAggregate()
Determines whether the Expression handles a collection of sub-expressions that are aggregated by logical or arithmetic operators.
Overrides:
handleAggregate in class JPQLQueryBNF
Returns:
true if the sub-expression to parse might have several logical and/or arithmetic expressions; false otherwise

handleCollection

public boolean handleCollection()
Determines whether the Expression handles a collection of sub-expressions that are separated by commas.
Overrides:
handleCollection in class JPQLQueryBNF
Returns:
true if the sub-expression to parse might have several sub-expressions separated by commas; false otherwise

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