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java.lang.Objectorg.eclipse.persistence.jpa.jpql.parser.AbstractExpression
org.eclipse.persistence.jpa.jpql.parser.ArithmeticFactor
public final class ArithmeticFactor
This expression simply adds a plus or minus sign to the arithmetic primary expression.
arithmetic_factor ::= [{+|-}] arithmetic_primary
| 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 | |
|---|---|
ArithmeticFactor(AbstractExpression parent,
java.lang.String arithmeticFactor)
Creates a new ArithmeticFactor. |
|
| Method Summary | |
|---|---|
void |
accept(ExpressionVisitor visitor)
Visits this Expression by the given visitor. |
void |
acceptChildren(ExpressionVisitor visitor)
Visits the children of this Expression. |
protected void |
addChildrenTo(java.util.Collection<Expression> children)
Adds the children of this AbstractExpression to the given collection. |
protected void |
addOrderedChildrenTo(java.util.List<Expression> children)
Adds the children of this AbstractExpression to the given list. |
Expression |
getExpression()
Returns the Expression representing the arithmetic primary. |
JPQLQueryBNF |
getQueryBNF()
Returns the BNF of this Expression. |
protected boolean |
handleAggregate(JPQLQueryBNF queryBNF)
Determines whether the given JPQLQueryBNF handles aggregate expressions. |
boolean |
hasExpression()
Determines whether the arithmetic primary was parsed. |
boolean |
isMinusSign()
Determines if the arithmetic primary is prepended with the minus sign. |
protected 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. |
boolean |
isPlusSign()
Determines if the arithmetic primary is prepended with the plus sign. |
protected void |
parse(WordParser wordParser,
boolean tolerant)
Parses the query by starting at the current position, which is part of the given WordParser. |
protected void |
toParsedText(java.lang.StringBuilder writer,
boolean actual)
Generates a string representation of this Expression, including its children,
if it has any. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
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public ArithmeticFactor(AbstractExpression parent, java.lang.String arithmeticFactor)
ArithmeticFactor.
parent - The parent of this expressionarithmeticFactor - The arithmetic factor, which is either '+' or '-'| Method Detail |
|---|
public void accept(ExpressionVisitor visitor)
Expression by the given visitor.
visitor - The ExpressionVisitor to visit this objectpublic void acceptChildren(ExpressionVisitor visitor)
Expression. This method can be used to optimize traversing
the children since a new list is not created every time Expression.children() is called.
This does not traverse the Expression sub-hierarchy, use a subclass of
AbstractTraverseChildrenVisitor in order to traverse the entire sub-hierarchy.
visitor - The visitor to visit the children of this object.protected void addChildrenTo(java.util.Collection<Expression> children)
AbstractExpression to the given collection.
addChildrenTo in class AbstractExpressionchildren - The collection used to store the childrenprotected void addOrderedChildrenTo(java.util.List<Expression> children)
AbstractExpression to the given list.
addOrderedChildrenTo in class AbstractExpressionchildren - The list used to store the string representation of this AbstractExpressionpublic Expression getExpression()
Expression representing the arithmetic primary.
public JPQLQueryBNF getQueryBNF()
Expression.
JPQLQueryBNF, which represents the grammar of this Expressionprotected boolean handleAggregate(JPQLQueryBNF queryBNF)
JPQLQueryBNF handles aggregate expressions.
handleAggregate in class AbstractExpressionqueryBNF - The JPQLQueryBNF used to determine if the parsing should handle
aggregate expressions
true if the given BNF handles aggregate expressions; false
otherwisepublic boolean hasExpression()
true the arithmetic primary was parsed; false if nothing was
parsedpublic boolean isMinusSign()
true if the expression is prepended with '-'; false otherwiseprotected boolean isParsingComplete(WordParser wordParser, java.lang.String word, Expression expression)
isParsingComplete in class AbstractExpressionwordParser - The text to parse based on the current position of the cursorword - The word that was retrieved from the given text, which is the first word in the textexpression - The Expression that has already been parsed
true if the text no longer can't be parsed by the current expression;
false if more can be parsedpublic boolean isPlusSign()
true if the expression is prepended with '+'; false otherwiseprotected void parse(WordParser wordParser, boolean tolerant)
WordParser.
parse in class AbstractExpressionwordParser - The text to parse based on the current position of the cursortolerant - Determines whether the parsing system should be tolerant, meaning if it should
try to parse invalid or incomplete queries
protected void toParsedText(java.lang.StringBuilder writer,
boolean actual)
Expression, including its children,
if it has any.
toParsedText in class AbstractExpressionwriter - The buffer used to append this Expression's string representationactual - Determines whether the string representation should represent what was parsed,
i.e. include any "virtual" whitespace (such as ending whitespace) and the actual case of the
JPQL identifiers
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