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EclipseLink 2.4.2, build 'v20130514-5956486' API Reference | ||||||||
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java.lang.Objectorg.eclipse.persistence.jpa.jpql.parser.AbstractExpression
org.eclipse.persistence.jpa.jpql.parser.NumericLiteral
public final class NumericLiteral
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.
Field Summary |
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Fields inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractExpression |
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COMMA, DOT, DOUBLE_QUOTE, LEFT_CURLY_BRACKET, LEFT_PARENTHESIS, NOT_DEFINED, RIGHT_CURLY_BRACKET, RIGHT_PARENTHESIS, SINGLE_QUOTE, SPACE, UNDERSCORE |
Constructor Summary | |
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NumericLiteral(AbstractExpression parent)
Creates a new NumericLiteral . |
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NumericLiteral(AbstractExpression parent,
java.lang.String numeric)
Creates a new NumericLiteral . |
Method Summary | |
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void |
accept(ExpressionVisitor visitor)
Visits this Expression by the given visitor . |
void |
acceptChildren(ExpressionVisitor visitor)
Visits the children of this Expression . |
protected void |
addOrderedChildrenTo(java.util.List<Expression> children)
Adds the children of this AbstractExpression to the given list. |
JPQLQueryBNF |
getQueryBNF()
Returns the BNF of this Expression . |
java.lang.String |
getText()
Returns the encapsulated text of this AbstractExpression , which can be used in various
ways, it can be a keyword, a literal, etc. |
protected void |
parse(WordParser wordParser,
boolean tolerant)
Parses the query by starting at the current position, which is part of the given WordParser . |
java.lang.String |
toActualText()
Generates a string representation of this Expression , 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. |
java.lang.String |
toParsedText()
Returns a string representation of this Expression and its children. |
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 |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public NumericLiteral(AbstractExpression parent)
NumericLiteral
.
parent
- The parent of this expressionpublic NumericLiteral(AbstractExpression parent, java.lang.String numeric)
NumericLiteral
.
parent
- The parent of this expressionnumeric
- The numeric valueMethod Detail |
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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 addOrderedChildrenTo(java.util.List<Expression> children)
AbstractExpression
to the given list.
addOrderedChildrenTo
in class AbstractExpression
children
- The list used to store the string representation of this AbstractExpression
public JPQLQueryBNF getQueryBNF()
Expression
.
JPQLQueryBNF
, which represents the grammar of this Expression
public java.lang.String getText()
AbstractExpression
, which can be used in various
ways, it can be a keyword, a literal, etc.
getText
in class AbstractExpression
protected void parse(WordParser wordParser, boolean tolerant)
WordParser
.
parse
in class AbstractExpression
wordParser
- 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 queriespublic java.lang.String toActualText()
Expression
, 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.
toActualText
in interface Expression
toActualText
in class AbstractExpression
Expression
public java.lang.String toParsedText()
Expression
and its children. The expression
should contain whitespace even if the beautified version would not have any. For instance,
"SELECT e " should be returned where Expression.toParsedText()
would return "SELECT e".
toParsedText
in interface Expression
toParsedText
in class AbstractExpression
Expression
protected void toParsedText(java.lang.StringBuilder writer, boolean actual)
Expression
, including its children,
if it has any.
toParsedText
in class AbstractExpression
writer
- 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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EclipseLink 2.4.2, build 'v20130514-5956486' API Reference | ||||||||
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