Class UpdateStatement

  • All Implemented Interfaces:

    public final class UpdateStatement
    extends AbstractExpression
    The UPDATE clause of a query consists of a conditional expression used to select objects or values that satisfy the expression. The UPDATE clause restricts the result of a select statement or the scope of an update operation.
    BNF: update_statement ::= update_clause [where_clause]

    See Also:
    JPQLExpression, UpdateClause, WhereClause
    Pascal Filion
    • Constructor Detail

      • UpdateStatement

        public UpdateStatement​(AbstractExpression parent)
        Creates a new UpdateStatement.
        parent - The parent of this expression
    • Method Detail

      • getUpdateClause

        public UpdateClause getUpdateClause()
        Returns the UpdateClause representing the UPDATE clause.
        The section of the update statement representing the UPDATE clause
      • getWhereClause

        public Expression getWhereClause()
        Returns the Expression representing the WHERE clause.
        The section of the update statement representing the WHERE clause
      • hasSpaceAfterUpdateClause

        public boolean hasSpaceAfterUpdateClause()
        Determines whether a whitespace was parsed after the UPDATE clause.
        true if a whitespace was parsed after the UPDATE clause; false otherwise
      • hasWhereClause

        public boolean hasWhereClause()
        Determines whether the WHERE clause is defined or not.
        true if this statement has a WHERE clause; false if it was not parsed
      • parse

        protected void parse​(WordParser wordParser,
                             boolean tolerant)
        Description copied from class: AbstractExpression
        Parses the query by starting at the current position, which is part of the given WordParser.
        Specified by:
        parse in class AbstractExpression
        wordParser - The text to parse based on the current position of the cursor
        tolerant - Determines whether the parsing system should be tolerant, meaning if it should try to parse invalid or incomplete queries
      • toParsedText

        protected void toParsedText​(StringBuilder writer,
                                    boolean actual)
        Description copied from class: AbstractExpression
        Generates a string representation of this Expression, including its children, if it has any.
        Specified by:
        toParsedText in class AbstractExpression
        writer - The buffer used to append this Expression's string representation
        actual - 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