org.apache.tapestry5.plastic
Enum Condition

java.lang.Object
  extended by java.lang.Enum<Condition>
      extended by org.apache.tapestry5.plastic.Condition
All Implemented Interfaces:
Serializable, Comparable<Condition>

public enum Condition
extends Enum<Condition>

Condition used with InstructionBuilder.when(Condition, WhenCallback). Most conditions pop the top element off the stack; some pop two elements.


Enum Constant Summary
EQUAL
          Compare two integer elements on the stack; branch if the deeper element equal to the top element.
GREATER
          Compare two integer elements on the stack; branch if the deeper element is greater than the top element.
LESS_THAN
          Compare two integer elements on the stack; branch if the deeper element is less than the top element.
NON_NULL
          Is the top element of the stack non-null?
NON_ZERO
          Is the top element of the stack not the integer zero?
NOT_EQUAL
          Compare two integer elements on the stack; branch if the deeper element is not equal to the top element.
NULL
          Is the top element of the stack null?
ZERO
          Is the top element of the stack the integer zero?
 
Method Summary
static Condition valueOf(String name)
          Returns the enum constant of this type with the specified name.
static Condition[] values()
          Returns an array containing the constants of this enum type, in the order they are declared.
 
Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf
 
Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait
 

Enum Constant Detail

NULL

public static final Condition NULL
Is the top element of the stack null?


NON_NULL

public static final Condition NON_NULL
Is the top element of the stack non-null?


ZERO

public static final Condition ZERO
Is the top element of the stack the integer zero?


NON_ZERO

public static final Condition NON_ZERO
Is the top element of the stack not the integer zero?


LESS_THAN

public static final Condition LESS_THAN
Compare two integer elements on the stack; branch if the deeper element is less than the top element.


EQUAL

public static final Condition EQUAL
Compare two integer elements on the stack; branch if the deeper element equal to the top element.


NOT_EQUAL

public static final Condition NOT_EQUAL
Compare two integer elements on the stack; branch if the deeper element is not equal to the top element.


GREATER

public static final Condition GREATER
Compare two integer elements on the stack; branch if the deeper element is greater than the top element.

Method Detail

values

public static Condition[] values()
Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
for (Condition c : Condition.values())
    System.out.println(c);

Returns:
an array containing the constants of this enum type, in the order they are declared

valueOf

public static Condition valueOf(String name)
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:
name - the name of the enum constant to be returned.
Returns:
the enum constant with the specified name
Throws:
IllegalArgumentException - if this enum type has no constant with the specified name
NullPointerException - if the argument is null


Copyright © 2003-2012 The Apache Software Foundation.