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

java.lang.Object
org.eclipse.persistence.jpa.internal.jpql.parser.StringExpression
org.eclipse.persistence.jpa.internal.jpql.parser.AbstractExpression
org.eclipse.persistence.jpa.internal.jpql.parser.CompoundExpression
org.eclipse.persistence.jpa.internal.jpql.parser.ArithmeticExpression

All Implemented Interfaces:

Expression

Direct Known Subclasses:

AdditionExpression, DivisionExpression, MultiplicationExpression, SubtractionExpression

public abstract class ArithmeticExpression

extends CompoundExpression

This expression represents an arithmetic expression, which means the first and second expressions are aggregated with an arithmetic sign.

Since:

2.3

Version:

2.3

Author:

Pascal Filion

See Also:

AdditionExpression, DivisionExpression, MultiplicationExpression, SubtractionExpression

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

ArithmeticExpression(AbstractExpression parent, java.lang.String identifier)
Creates a new ArithmeticExpression.

Method Summary

java.lang.String	getArithmeticSign() Returns the arithmetic sign this expression is actually representing.
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.
JPQLQueryBNF	rightExpressionBNF() Returns the BNF used to determine how to parse the right expression.

Methods inherited from class org.eclipse.persistence.jpa.internal.jpql.parser.CompoundExpression

acceptChildren, addChildrenTo, addOrderedChildrenTo, getLeftExpression, getRightExpression, hasLeftExpression, hasRightExpression, hasSpaceAfterIdentifier, parse, 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

ArithmeticExpression

ArithmeticExpression(AbstractExpression parent,
                     java.lang.String identifier)

Creates a new ArithmeticExpression.

Parameters:

parent - The parent of this expression

identifier - The arithmetic sign

Method Detail

getArithmeticSign

public final java.lang.String getArithmeticSign()

Returns the arithmetic sign this expression is actually representing.

Returns:

The single character value of the arithmetic sign

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

final 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

final java.lang.String parseIdentifier(WordParser wordParser)

Parses the identifier of this expression.

Specified by:

parseIdentifier in class CompoundExpression

Returns:

The identifier for this expression

rightExpressionBNF

public final JPQLQueryBNF rightExpressionBNF()

Returns the BNF used to determine how to parse the right expression.

Specified by:

rightExpressionBNF in class CompoundExpression

Returns:

The BNF used when parsing the expression after the identifier

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