it.unimi.dsi.parser.callback
Class ComposedCallbackBuilder

java.lang.Object
  it.unimi.dsi.parser.callback.ComposedCallbackBuilder

public class ComposedCallbackBuilder
extends Object

A builder for composed callbacks.

To compose a series of callbacks, you must first create an instance of this class, add all required callbacks, and finally get the composed callback, which will invoke (in order) the callbacks.

Constructor Summary

ComposedCallbackBuilder()
Creates a new, empty callback composer.

Method Summary

void	add(Callback callback) Adds a new callback to this builder.
void	add(int position, Callback callback) Adds a new callback to this builder at a specified position.
Callback	compose() Returns the composed callback produced by this builder.
boolean	isEmpty() Checks whether this callback builder is empty.
int	size() Returns the number of callbacks in this builder.

Methods inherited from class java.lang.Object

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

Constructor Detail

ComposedCallbackBuilder

public ComposedCallbackBuilder()

Creates a new, empty callback composer.

Method Detail

add

public void add(int position,
                Callback callback)

Adds a new callback to this builder at a specified position.

Parameters:

position - a position in the current callback list.

callback - a callback.

add

public void add(Callback callback)

Adds a new callback to this builder.

Parameters:

callback - a callback.

isEmpty

public boolean isEmpty()

Checks whether this callback builder is empty.

Returns:

true if this callback builder is empty.

size

public int size()

Returns the number of callbacks in this builder.

Returns:

the number of callbacks in this composer.

compose

public Callback compose()

Returns the composed callback produced by this builder.

Returns:

a composed callback.