Class OptionalOrElseMethod

java.lang.Object
org.datanucleus.store.rdbms.sql.method.OptionalOrElseMethod
All Implemented Interfaces:
SQLMethod

public class OptionalOrElseMethod extends Object implements SQLMethod
Method for evaluating {optionalExpr1}.orElse(). Returns a XXXExpression representing "CASE WHEN col IS NOT NULL THEN col ELSE otherVal END".
  • Constructor Details

    • OptionalOrElseMethod

      public OptionalOrElseMethod()
  • Method Details

    • getExpression

      public SQLExpression getExpression(SQLStatement stmt, SQLExpression expr, List<SQLExpression> args)
      Description copied from interface: SQLMethod
      Return the expression for this SQL function.
      Specified by:
      getExpression in interface SQLMethod
      Parameters:
      stmt - SQLStatement that this expression is for
      expr - The expression that it is invoked on
      args - Arguments passed in
      Returns:
      The SQL expression using the SQL function