InternalFromClauseBNF (EclipseLink 2.7.15, API Reference)

java.lang.Object
- org.eclipse.persistence.jpa.jpql.parser.JPQLQueryBNF
- - org.eclipse.persistence.jpa.jpql.parser.InternalFromClauseBNF

```
public final class InternalFromClauseBNF
extends JPQLQueryBNF
```
The query BNF for the FROM declaration, basically what follows the FROM identifier.
JPA:
BNF: from_clause ::= FROM identification_variable_declaration {, {identification_variable_declaration | collection_member_declaration}}*

EclipseLink 2.4:
BNF: from_clause ::= FROM identification_variable_declaration {, {identification_variable_declaration | collection_member_declaration | (subquery) | table_declaration }}*

Version:

2.4

Author:

Pascal Filion

Since:

2.3

Field Summary

Fields
Modifier and Type Field Description

static java.lang.String ID
The unique identifier of this BNF rule.

Constructor Summary

Constructors
Constructor Description

InternalFromClauseBNF()
Creates a new InternalFromClauseBNF.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`initialize()`	Initializes this BNF by registering child `JPQLQueryBNFs` and `ExpressionFactories`.

Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.JPQLQueryBNF
children, getExpressionFactory, getExpressionFactoryIds, getExpressionRegistry, getFallbackBNFId, getFallbackExpressionFactoryId, getId, getIdentifiers, handleAggregate, handleCollection, handlesNestedArray, handleSubExpression, hasChild, hasIdentifier, isCompound, nonCompoundChildren, registerChild, registerExpressionFactory, setCompound, setFallbackBNFId, setFallbackExpressionFactoryId, setHandleAggregate, setHandleCollection, setHandleNestedArray, setHandleSubExpression, toString, 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
  - InternalFromClauseBNF
```
public InternalFromClauseBNF()
```
    Creates a new InternalFromClauseBNF.
- Method Detail
  - initialize
```
protected void initialize()
```
    Initializes this BNF by registering child JPQLQueryBNFs and ExpressionFactories.
    
    Overrides:
    
    initialize in class JPQLQueryBNF