Class AbstractEventContext

java.lang.Object
org.apache.tapestry5.internal.AbstractEventContext
All Implemented Interfaces:
EventContext
Direct Known Subclasses:
ArrayEventContext, URLEventContext

public abstract class AbstractEventContext extends Object implements EventContext
  • Constructor Details

  • Method Details

    • toStrings

      public String[] toStrings()
      Description copied from interface: EventContext
      Extracts the value of each context value as a string.
      Specified by:
      toStrings in interface EventContext
      Returns:
      context values
    • toString

      public String toString()
      Overrides:
      toString in class Object
    • isEmpty

      public boolean isEmpty()
      Description copied from interface: EventContext
      Returns true if this context contains no elements.
      Specified by:
      isEmpty in interface EventContext
    • tryGet

      public <T> Optional<T> tryGet(Class<T> desiredType, int index)
      Description copied from interface: EventContext
      Tries to extract a parameter value and coerces or decodes it to the desired type.
      Specified by:
      tryGet in interface EventContext
      Parameters:
      desiredType - the type of value required
      index - identifies which parameter value to extract
      Returns:
      the value extracted and converted or coerced, wrapped in an Optional, or Optional.empty() if index is out of bounds, or the value can't be converted.