org.eclipse.persistence.jpa.jpql.parser
Class SimpleSelectStatement

java.lang.Object
  org.eclipse.persistence.jpa.jpql.parser.AbstractExpression
      org.eclipse.persistence.jpa.jpql.parser.AbstractSelectStatement
          org.eclipse.persistence.jpa.jpql.parser.SimpleSelectStatement

All Implemented Interfaces:

Expression

public final class SimpleSelectStatement
extends AbstractSelectStatement

BNFL subquery ::= simple_select_clause subquery_from_clause [where_clause] [groupby_clause] [having_clause]

Version:

2.5

Author:

Pascal Filion

Since:

2.3

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

Fields inherited from interface org.eclipse.persistence.jpa.jpql.parser.Expression

ABS, 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 Summary

SimpleSelectStatement(AbstractExpression parent)
Creates a new SimpleSelectStatement.

Method Summary

void	accept(ExpressionVisitor visitor) Visits this Expression by the given visitor.
protected SimpleFromClause	buildFromClause() Creates the expression representing the from clause of this select statement.
protected SimpleSelectClause	buildSelectClause() Creates the expression representing the select clause of this select statement.
JPQLQueryBNF	getQueryBNF() Returns the BNF of this Expression.
protected boolean	shouldManageSpaceAfterClause() Determines whether the whitespace following the HAVING clause should be managed by this expression or not.

Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractSelectStatement

acceptChildren, addChildrenTo, addOrderedChildrenTo, findQueryBNF, getFromClause, getGroupByClause, getHavingClause, getSelectClause, getWhereClause, hasFromClause, hasGroupByClause, hasHavingClause, hasSelectClause, hasSpaceAfterFrom, hasSpaceAfterGroupBy, hasSpaceAfterSelect, hasSpaceAfterWhere, hasWhereClause, parse, toParsedText

Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractExpression

acceptUnknownVisitor, acceptUnknownVisitor, buildExpressionFromFallingBack, buildNullExpression, buildStringExpression, buildStringExpression, buildUnknownExpression, calculatePosition, children, findFallBackExpressionFactory, getExpressionFactory, getExpressionRegistry, getGrammar, getIdentifierVersion, getJPAVersion, getLength, getOffset, getParent, getQueryBNF, getRoot, getText, handleAggregate, handleCollection, isAncestor, isIdentifier, isNull, isParsingComplete, isTolerant, isUnknown, isVirtual, orderedChildren, parse, parseUsingExpressionFactory, populatePosition, rebuildActualText, rebuildParsedText, setParent, setText, shouldParseWithFactoryFirst, shouldSkipLiteral, toActualText, toParsedText, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

SimpleSelectStatement

public SimpleSelectStatement(AbstractExpression parent)

Creates a new SimpleSelectStatement.

Parameters:

parent - The parent of this expression

Method Detail

accept

public void accept(ExpressionVisitor visitor)

Visits this Expression by the given visitor.

Parameters:

visitor - The ExpressionVisitor to visit this object

buildFromClause

protected SimpleFromClause buildFromClause()

Creates the expression representing the from clause of this select statement.

Specified by:

buildFromClause in class AbstractSelectStatement

Returns:

A new from clause, null can't be returned

buildSelectClause

protected SimpleSelectClause buildSelectClause()

Creates the expression representing the select clause of this select statement.

Specified by:

buildSelectClause in class AbstractSelectStatement

Returns:

A new from clause, null can't be returned

getQueryBNF

public JPQLQueryBNF getQueryBNF()

Returns the BNF of this Expression.

Returns:

The JPQLQueryBNF, which represents the grammar of this Expression

shouldManageSpaceAfterClause

protected boolean shouldManageSpaceAfterClause()

Determines whether the whitespace following the HAVING clause should be managed by this expression or not.

Overrides:

shouldManageSpaceAfterClause in class AbstractSelectStatement

Returns:

true by default to keep the whitespace part of this expression; false to let the parent handle it