Package javax.el

Class MethodExpression

java.lang.Object
javax.el.Expression
javax.el.MethodExpression
All Implemented Interfaces:
Serializable
public abstract class MethodExpression extends Expression
See Also:

  • Constructor Details

    • MethodExpression

      public MethodExpression()

  • Method Details

    • getMethodInfo

      public abstract MethodInfo getMethodInfo(ELContext context)
      Parameters:
      context - The EL context for this evaluation
      Returns:
      Information about the method that this expression resolves to
      Throws:
      NullPointerException - If the supplied context is null
      PropertyNotFoundException - If a property/variable resolution failed because no match was found or a match was found but was not readable
      MethodNotFoundException - If no matching method can be found
      ELException - Wraps any exception throw whilst resolving the property

    • invoke

      public abstract Object invoke(ELContext context, Object[] params)
      Parameters:
      context - The EL context for this evaluation
      params - The parameters with which to invoke this method expression
      Returns:
      The result of invoking this method expression
      Throws:
      NullPointerException - If the supplied context is null
      PropertyNotFoundException - If a property/variable resolution failed because no match was found or a match was found but was not readable
      MethodNotFoundException - If no matching method can be found
      ELException - Wraps any exception throw whilst resolving the property or coercion of the result to the expected return type fails

    • isParametersProvided

      public boolean isParametersProvided()
      Returns:
      This default implementation always returns false
      Since:
      EL 3.0

    • isParmetersProvided

      @Deprecated public boolean isParmetersProvided()
      Deprecated.
      Use isParametersProvided()
      Returns:
      Always false
      Since:
      EL 2.2 Note: The spelling mistake is deliberate. isParmetersProvided() - Specification definition isParametersProvided() - Corrected spelling