Package org.apache.qpid.server.query.engine.parsing.expression.function.datetime

Class DateExpression<T,​R>

  • Type Parameters:
    T - Input parameter type
    R - Output parameter type
    All Implemented Interfaces:
    java.util.function.Function<T,​java.time.LocalDate>, Expression<T,​java.time.LocalDate>, ExpressionNode<T,​java.time.LocalDate>
    public class DateExpression<T,​R>
extends AbstractFunctionExpression<T,​java.time.LocalDate>
    The DATE() function extracts the date part from a datetime expression.

    • Constructor Detail

      • DateExpression

        public DateExpression​(java.lang.String alias,
                      java.util.List<ExpressionNode<T,​?>> args)
        Constructor initializes children expression list
        Parameters:
        alias - Expression alias
        args - List of children expressions

    • Method Detail

      • apply

        public java.time.LocalDate apply​(T value)
        Performs date operation using parameters and the value supplied
        Parameters:
        value - Object to handle
        Returns:
        Resulting date