edu.neu.ccs.demeterf.compose
Class CompTraversal

java.lang.Object
  edu.neu.ccs.demeterf.compose.CompTraversal

public class CompTraversal
extends java.lang.Object

Traverses an Object structure using Functors: combined Function Classes that know what to do. The constructors take any number of Functors or unwrapped function objects. During traversal, the first function object is treated normally, possibly with a traversal argument. All others receive the previous Functor's result as a final combine argument.

See Compose for an example.

Constructor Summary

CompTraversal(FC... fs)
Create a Traversal that goes Everywhere using any number of function objects

CompTraversal(FC[] fs, Control c)
Create a Traversal with traversal control using any number of function objects

CompTraversal(Functor... fs)
Create a Traversal that goes Everywhere using any number of Functors

CompTraversal(Functor[] fs, Control c)
Create a Traversal with traversal control, using any number of Functors

Method Summary

java.lang.Object[]	traverse(java.lang.Object o) Do the Traversal...
java.lang.Object[]	traverse(java.lang.Object o, java.lang.Object a) Do the Traversal...
<T> T	traverseLast(java.lang.Object o) Do the Traversal...
<T> T	traverseLast(java.lang.Object o, java.lang.Object arg) Do the Traversal...

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CompTraversal

public CompTraversal(Functor... fs)

Create a Traversal that goes Everywhere using any number of Functors

CompTraversal

public CompTraversal(Functor[] fs,
                     Control c)

Create a Traversal with traversal control, using any number of Functors

CompTraversal

public CompTraversal(FC... fs)

Create a Traversal that goes Everywhere using any number of function objects

CompTraversal

public CompTraversal(FC[] fs,
                     Control c)

Create a Traversal with traversal control using any number of function objects

Method Detail

traverseLast

public <T> T traverseLast(java.lang.Object o)

Do the Traversal... No arguments, but only return the last result

traverseLast

public <T> T traverseLast(java.lang.Object o,
                          java.lang.Object arg)

Do the Traversal... With an argument, but only return the last result

traverse

public java.lang.Object[] traverse(java.lang.Object o)

Do the Traversal... No arguments, return all the results

traverse

public java.lang.Object[] traverse(java.lang.Object o,
                                   java.lang.Object a)

Do the Traversal... With an argument, return all the results