/*license*\
XBN-Java: Copyright (C) 2014, Jeff Epstein (aliteralmind __DASH__ github __AT__ yahoo __DOT__ com)
This software is dual-licensed under the:
- Lesser General Public License (LGPL) version 3.0 or, at your option, any later version;
- Apache Software License (ASL) version 2.0.
Either license may be applied at your discretion. More information may be found at
- http://en.wikipedia.org/wiki/Multi-licensing.
The text of both licenses is available in the root directory of this project, under the names "LICENSE_lgpl-3.0.txt" and "LICENSE_asl-2.0.txt". The latest copies may be downloaded at:
- LGPL 3.0: https://www.gnu.org/licenses/lgpl-3.0.txt
- ASL 2.0: http://www.apache.org/licenses/LICENSE-2.0.txt
\*license*/
package com.github.xbn.neederneedable;
import com.github.xbn.lang.CrashIfObject;
import com.github.xbn.testdev.CompositionConstructor;
import com.github.xbn.testdev.CompositionFunction;
/**
<p>For classes that need to implement {@code Needer}, that cannot extend {@code AbstractNeeder}.</p>
* @see Needer
* @see AbstractNeeder
* @since 0.1.0
* @author Copyright (C) 2014, Jeff Epstein ({@code aliteralmind __DASH__ github __AT__ yahoo __DOT__ com}), dual-licensed under the LGPL (version 3.0 or later) or the ASL (version 2.0). See source code for details. <a href="http://xbnjava.aliteralmind.com">{@code http://xbnjava.aliteralmind.com}</a>, <a href="https://github.com/aliteralmind/xbnjava">{@code https://github.com/aliteralmind/xbnjava}</a>
**/
public class NeederComposer {//implements Needer {
//state
Class<?> clsNdd = null;
boolean bCfgActv = false;
//internal
//constructors...START
/**
<p>Create a new instance.</p>
*/
@CompositionConstructor
public NeederComposer() {
}
//constructors...END
//documented by interface
@SuppressWarnings("unchecked")
@CompositionFunction
public Class getNeededType() {
return clsNdd;
}
//documented by interface
@CompositionFunction
public boolean isConfigActive() {
return bCfgActv;
}
//main functionality...START
//documented by interface
@CompositionFunction
public <O> void startConfig(Class<O> needed_class) {
if(isConfigActive()) {
throw new IllegalStateException("isConfigActive() is true.");
}
if(needed_class == null) {
throw new NullPointerException("needed_class");
}
clsNdd = needed_class;
bCfgActv = true;
}
/**
<p>End configuration and get the fully-configured object--this must be implemented as {@code protected} with the name "{@code setGetNeededEndConfig}".</p>
*/
@CompositionFunction
public Object setGetNeededEndConfig_4prot(Object needed_fullyConfigured) {
if(!isConfigActive()) {
throw new IllegalStateException("isConfigActive() is false.");
}
if(!getNeededType().isInstance(needed_fullyConfigured)) {
throw new ClassCastException("getNeededType().isInstance(needed_fullyConfigured) is false. getNeededType()=" + getNeededType() + ", needed_fullyConfigured=[" + needed_fullyConfigured + "]");
}
bCfgActv = false;
return needed_fullyConfigured;
}
//main functionality...END
public static final void isxIfActiveIs(Needer needer, boolean crash_ifConfigIsActive) {
try {
if(needer.isConfigActive() == crash_ifConfigIsActive) {
throw new IllegalStateException("isConfigActive() is " + crash_ifConfigIsActive + ".");
}
} catch(RuntimeException rx) {
throw CrashIfObject.nullOrReturnCause(needer, "needer", null, rx);
}
}
/*stub functions for implements compile...START
public void neeadableSetsNeeded(Object fully_configured) {
}
stub functions for implements compile...END*/
}