org.springframework.core

Class PrioritizedParameterNameDiscoverer

  • All Implemented Interfaces:
    ParameterNameDiscoverer

    public class PrioritizedParameterNameDiscoverer
    extends Object
    implements ParameterNameDiscoverer
    ParameterNameDiscoverer implementation that tries several ParameterNameDiscoverers in succession. Those added first in the addDiscoverer method have highest priority. If one returns null, the next will be tried.

    The default behavior is always to return null if no discoverer matches.

    Since:
    2.0
    Author:
    Rod Johnson, Juergen Hoeller
    • Constructor Detail

      • PrioritizedParameterNameDiscoverer

        public PrioritizedParameterNameDiscoverer()
    • Method Detail

      • addDiscoverer

        public void addDiscoverer(ParameterNameDiscoverer pnd)
        Add a further ParameterNameDiscoverer to the list of discoverers that this PrioritizedParameterNameDiscoverer checks.
      • getParameterNames

        public String[] getParameterNames(Method method)
        Description copied from interface: ParameterNameDiscoverer
        Return parameter names for this method, or null if they cannot be determined.
        Specified by:
        getParameterNames in interface  ParameterNameDiscoverer
        Parameters:
        method - method to find parameter names for
        Returns:
        an array of parameter names if the names can be resolved, or null if they cannot
      • getParameterNames

        public String[] getParameterNames(Constructor ctor)
        Description copied from interface: ParameterNameDiscoverer
        Return parameter names for this constructor, or null if they cannot be determined.
        Specified by:
        getParameterNames in interface  ParameterNameDiscoverer
        Parameters:
        ctor - constructor to find parameter names for
        Returns:
        an array of parameter names if the names can be resolved, or null if they cannot