|
EclipseLink 2.4.1, build 'v20121003-ad44345' API Reference | ||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Objectorg.eclipse.persistence.jpa.jpql.parser.AbstractExpression
org.eclipse.persistence.jpa.jpql.parser.DeleteStatement
public final class DeleteStatement
Bulk delete operation apply to entities of a single entity class (together with its subclasses, if any).
delete_statement ::= delete_clause [where_clause]
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 | |
---|---|
DeleteStatement(AbstractExpression parent)
Creates a new DeleteStatement . |
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. |
DeleteClause |
addDeleteClause()
Manually adds the delete clause to this delete statement. |
protected void |
addOrderedChildrenTo(java.util.List<Expression> children)
Adds the children of this AbstractExpression to the given list. |
DeleteClause |
getDeleteClause()
Returns the Expression representing the DELETE clause. |
JPQLQueryBNF |
getQueryBNF()
Returns the BNF of this Expression . |
Expression |
getWhereClause()
Returns the Expression representing the WHERE clause. |
boolean |
hasSpaceAfterDeleteClause()
Determines whether a whitespace was found after the DELETE FROM clause. |
boolean |
hasWhereClause()
Determines whether the WHERE clause is defined. |
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 |
---|
public DeleteStatement(AbstractExpression parent)
DeleteStatement
.
parent
- The parent of this expressionMethod 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 AbstractExpression
children
- The collection used to store the childrenpublic DeleteClause addDeleteClause()
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 DeleteClause getDeleteClause()
Expression
representing the DELETE clause.
public JPQLQueryBNF getQueryBNF()
Expression
.
JPQLQueryBNF
, which represents the grammar of this Expression
public Expression getWhereClause()
Expression
representing the WHERE clause.
public boolean hasSpaceAfterDeleteClause()
true
if there was a whitespace after the DELETE FROM clause and
owned by this expression; false
otherwisepublic boolean hasWhereClause()
true
if the query that got parsed had the WHERE clauseprotected 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 queriesprotected 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
|
EclipseLink 2.4.1, build 'v20121003-ad44345' API Reference | ||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |