|
EclipseLink 2.4.2, build 'v20130514-5956486' 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.AbstractEncapsulatedExpression
org.eclipse.persistence.jpa.jpql.parser.AbstractSingleEncapsulatedExpression
org.eclipse.persistence.jpa.jpql.parser.AllOrAnyExpression
public final class AllOrAnyExpression
An ALL conditional expression is a predicate that is true
if the comparison
operation is true
for all values in the result of the subquery or the result of the
subquery is empty. An ALL conditional expression is false
if the result of
the comparison is false
for at least one row, and is unknown if neither
true
nor false
.
An ANY conditional expression is a predicate that is true
if the comparison
operation is true
for some value in the result of the subquery. An ANY
conditional expression is false
if the result of the subquery is empty or if the
comparison operation is false
for every value in the result of the subquery, and is
unknown if neither true
nor false
. The keyword SOME is
synonymous with ANY. The comparison operators used with ALL or ANY
conditional expressions are =, <, <=, >, >=, <>. The result of the subquery must be like that of
the other argument to the comparison operator in type.
all_or_any_expression ::= {ALL|ANY|SOME}(subquery)
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 | |
---|---|
AllOrAnyExpression(AbstractExpression parent)
Creates a new AllOrAnyExpression . |
Method Summary | |
---|---|
void |
accept(ExpressionVisitor visitor)
Visits this Expression by the given visitor . |
java.lang.String |
encapsulatedExpressionBNF()
Returns the BNF used to parse the encapsulated expression. |
JPQLQueryBNF |
getQueryBNF()
Returns the BNF of this Expression . |
protected AbstractExpression |
parse(WordParser wordParser,
java.lang.String queryBNFId,
boolean tolerant)
Parses the given text by using the specified BNF. |
protected java.lang.String |
parseIdentifier(WordParser wordParser)
Parses the identifier of this expression. |
Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractSingleEncapsulatedExpression |
---|
acceptChildren, addChildrenTo, addOrderedEncapsulatedExpressionTo, findQueryBNF, getExpression, hasEncapsulatedExpression, hasExpression, parseEncapsulatedExpression, removeEncapsulatedExpression, setExpression, toParsedTextEncapsulatedExpression |
Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractEncapsulatedExpression |
---|
addOrderedChildrenTo, areLogicalIdentifiersSupported, getActualIdentifier, getIdentifier, hasLeftParenthesis, hasRightParenthesis, hasSpaceAfterIdentifier, isParsingComplete, parse, shouldParseRightParenthesis, toParsedText |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
---|
public AllOrAnyExpression(AbstractExpression parent)
AllOrAnyExpression
.
parent
- The parent of this expressionMethod Detail |
---|
public void accept(ExpressionVisitor visitor)
Expression
by the given visitor
.
visitor
- The ExpressionVisitor
to visit this objectpublic java.lang.String encapsulatedExpressionBNF()
encapsulatedExpressionBNF
in class AbstractSingleEncapsulatedExpression
public JPQLQueryBNF getQueryBNF()
Expression
.
JPQLQueryBNF
, which represents the grammar of this Expression
protected AbstractExpression parse(WordParser wordParser, java.lang.String queryBNFId, boolean tolerant)
parse
in class AbstractExpression
wordParser
- The text to parse based on the current position of the cursorqueryBNFId
- The unique identifier of the JPQLQueryBNF
that is used to determine
how to parse the text at the current cursor position within the JPQL querytolerant
- Determines whether the parsing system should be tolerant, meaning if it should
try to parse invalid or incomplete queries
Expression
representing the given sub-queryprotected java.lang.String parseIdentifier(WordParser wordParser)
parseIdentifier
in class AbstractEncapsulatedExpression
|
EclipseLink 2.4.2, build 'v20130514-5956486' API Reference | ||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |