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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 LogicalExpression

java.lang.Object
  extended by org.eclipse.persistence.jpa.internal.jpql.parser.StringExpression
      extended by org.eclipse.persistence.jpa.internal.jpql.parser.AbstractExpression
          extended by org.eclipse.persistence.jpa.internal.jpql.parser.CompoundExpression
              extended by org.eclipse.persistence.jpa.internal.jpql.parser.LogicalExpression

All Implemented Interfaces:
Expression
Direct Known Subclasses:
AndExpression, OrExpression

public abstract class LogicalExpression
extends CompoundExpression

This expression represents a logical expression, which means the first and second expressions are aggregated with either AND or OR.

Since:
2.3
Version:
2.3
Author:
Pascal Filion

Field Summary

 

Fields inherited from class org.eclipse.persistence.jpa.internal.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.internal.jpql.parser.Expression
ABS, ALL, AND, ANY, AS, ASC, AVG, BETWEEN, BIT_LENGTH, BOTH, CASE, CHAR_LENGTH, CHARACTER_LENGTH, CLASS, COALESCE, CONCAT, COUNT, CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP, DELETE, DELETE_FROM, DESC, DIFFERENT, DISTINCT, DIVISION, ELSE, EMPTY, END, ENTRY, EQUAL, ESCAPE, EXISTS, FALSE, FETCH, FROM, FUNC, GREATER_THAN, GREATER_THAN_OR_EQUAL, GROUP_BY, HAVING, IN, INDEX, INNER, INNER_JOIN, INNER_JOIN_FETCH, IS, IS_EMPTY, IS_NOT_EMPTY, IS_NOT_NULL, IS_NULL, JOIN, JOIN_FETCH, KEY, 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_EXISTS, NOT_IN, NOT_LIKE, NOT_MEMBER, NOT_MEMBER_OF, NULL, NULLIF, OBJECT, OF, OR, ORDER_BY, OUTER, PLUS, POSITION, POSITIONAL_PARAMETER, QUOTE, SELECT, SET, SIZE, SOME, SQRT, SUBSTRING, SUM, THEN, TRAILING, TREAT, TRIM, TRUE, TYPE, UNKNOWN, UPDATE, UPPER, VALUE, WHEN, WHERE

 

Constructor Summary
LogicalExpression(AbstractExpression parent, java.lang.String identifier)
          Creates a new LogicalExpression.

 

Method Summary
 java.lang.String getIdentifier()
          Returns the identifier that is aggregating the two expressions.
 JPQLQueryBNF getQueryBNF()
          Returns the BNF of this Expression.
(package private)  boolean isParsingComplete(WordParser wordParser, java.lang.String word, Expression expression)
          Determines whether the parsing is complete based on what is left in the given text.
(package private)  java.lang.String parseIdentifier(WordParser wordParser)
          Parses the identifier of this expression.

 

Methods inherited from class org.eclipse.persistence.jpa.internal.jpql.parser.CompoundExpression
acceptChildren, addChildrenTo, addOrderedChildrenTo, getLeftExpression, getRightExpression, hasLeftExpression, hasRightExpression, hasSpaceAfterIdentifier, parse, rightExpressionBNF, setLeftExpression, setRightExpression, toParsedText

 

Methods inherited from class org.eclipse.persistence.jpa.internal.jpql.parser.AbstractExpression
buildExpressionFromFallingBack, buildNullExpression, buildStringExpression, buildStringExpression, buildUnknownExpression, children, expressionFactory, expressionFactoryForIdentifier, findQueryBNF, getChildren, getJPAVersion, getParent, getRoot, getText, handleAggregate, identifierRole, identifiers, identifiers, identifierVersion, isAncestor, isIdentifier, isNull, isTolerant, isUnknown, isVirtual, orderedChildren, parse, parseSingleExpression, populatePosition, queryBNF, readdLeadingSpaces, 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

 

Methods inherited from interface org.eclipse.persistence.jpa.internal.jpql.parser.Expression
accept

 

Constructor Detail

LogicalExpression

LogicalExpression(AbstractExpression parent,
                  java.lang.String identifier)
Creates a new LogicalExpression.
Parameters:
parent - The parent of this expression
identifier - The identifier of this expression

Method Detail

getIdentifier

public final java.lang.String getIdentifier()
Returns the identifier that is aggregating the two expressions.
Returns:
Either AND or OR

getQueryBNF

public final JPQLQueryBNF getQueryBNF()
Returns the BNF of this Expression.
Specified by:
getQueryBNF in class AbstractExpression
Returns:
The JPQLQueryBNF, which represents the grammar of this Expression

isParsingComplete

boolean isParsingComplete(WordParser wordParser,
                          java.lang.String word,
                          Expression expression)
Determines whether the parsing is complete based on what is left in the given text. The text is never empty.
Overrides:
isParsingComplete in class AbstractExpression
Parameters:
wordParser - The text to parse based on the current position of the cursor
word - The word that was retrieved from the given text, which is the first word in the text
expression - The Expression that has already been parsed
Returns:
true if the text no longer can't be parsed by the current expression; false if more can be parsed

parseIdentifier

java.lang.String parseIdentifier(WordParser wordParser)
Parses the identifier of this expression.
Specified by:
parseIdentifier in class CompoundExpression
Returns:
The identifier for this expression

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