Class NumericLiteral
- java.lang.Object
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- org.eclipse.persistence.jpa.jpql.parser.AbstractExpression
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- org.eclipse.persistence.jpa.jpql.parser.NumericLiteral
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- All Implemented Interfaces:
Expression
public final class NumericLiteral extends AbstractExpression
Exact numeric literals support the use of Java integer literal syntax as well as SQL exact numeric literal syntax. Approximate literals support the use of Java floating point literal syntax as well as SQL approximate numeric literal syntax.Appropriate suffixes may be used to indicate the specific type of a numeric literal in accordance with the Java Language Specification.
- Since:
- 2.3
- Version:
- 2.5
- Author:
- Pascal Filion
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Field Summary
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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
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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
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Constructor Summary
Constructors Constructor Description NumericLiteral(AbstractExpression parent)
Creates a newNumericLiteral
.NumericLiteral(AbstractExpression parent, String numeric)
Creates a newNumericLiteral
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
accept(ExpressionVisitor visitor)
Visits thisExpression
by the givenvisitor
.void
acceptChildren(ExpressionVisitor visitor)
Visits the children of thisExpression
.JPQLQueryBNF
getQueryBNF()
Returns the BNF of thisExpression
.String
getText()
String
toActualText()
Generates a string representation of thisExpression
, which needs to include any characters that are considered virtual, i.e.String
toParsedText()
Returns a string representation of thisExpression
and its children.-
Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractExpression
children, findQueryBNF, getGrammar, getIdentifierVersion, getLength, getOffset, getParent, getQueryBNF, getRoot, isAncestor, orderedChildren, populatePosition, toString
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Constructor Detail
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NumericLiteral
public NumericLiteral(AbstractExpression parent)
Creates a newNumericLiteral
.- Parameters:
parent
- The parent of this expression
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NumericLiteral
public NumericLiteral(AbstractExpression parent, String numeric)
Creates a newNumericLiteral
.- Parameters:
parent
- The parent of this expressionnumeric
- The numeric value
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Method Detail
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accept
public void accept(ExpressionVisitor visitor)
Visits thisExpression
by the givenvisitor
.- Parameters:
visitor
- TheExpressionVisitor
to visit this object
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acceptChildren
public void acceptChildren(ExpressionVisitor visitor)
Visits the children of thisExpression
. This method can be used to optimize traversing the children since a new list is not created every timeExpression.children()
is called.This does not traverse the
Expression
sub-hierarchy, use a subclass ofAbstractTraverseChildrenVisitor
in order to traverse the entire sub-hierarchy.- Parameters:
visitor
- Thevisitor
to visit the children of this object.
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getQueryBNF
public JPQLQueryBNF getQueryBNF()
Returns the BNF of thisExpression
.- Returns:
- The
JPQLQueryBNF
, which represents the grammar of thisExpression
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getText
public String getText()
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toActualText
public String toActualText()
Generates a string representation of thisExpression
, which needs to include any characters that are considered virtual, i.e. that was parsed when the query is incomplete and is needed for functionality like content assist.- Specified by:
toActualText
in interfaceExpression
- Overrides:
toActualText
in classAbstractExpression
- Returns:
- The string representation of this
Expression
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toParsedText
public String toParsedText()
Returns a string representation of thisExpression
and its children. The expression should contain whitespace even if the beautified version would not have any. For instance, "SELECT e " should be returned whereExpression.toParsedText()
would return "SELECT e".- Specified by:
toParsedText
in interfaceExpression
- Overrides:
toParsedText
in classAbstractExpression
- Returns:
- The string representation of this
Expression
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