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package io.qt.core;

import java.util.Objects;

import io.qt.NonNull;
import io.qt.Nullable;
import io.qt.QNoImplementationException;

/**
 * Allows monitoring a QFuture using signals and slots
 * Java wrapper for Qt class QFutureWatcher
 */
public final class QFutureWatcher extends io.qt.core.QFutureWatcherBase
{
	/**
     * This variable stores the meta-object for the class.
     */
    public static final io.qt.core.QMetaObject staticMetaObject = io.qt.core.QMetaObject.forType(QFutureWatcher.class);
    
    /**
     * Overloaded constructor for {@link #QFutureWatcher(io.qt.core.QObject)}
     *  with _parent = null.
     */
    public QFutureWatcher() {
        this((io.qt.core.QObject)null);
    }
    
    /**
     * See QFutureWatcher::QFutureWatcher(QObject*)
     */
    public QFutureWatcher(io.qt.core.@Nullable QObject parent){
        super((QPrivateConstructor)null);
        long[] functions = {0,0,0};
        initialize_native(this, parent, functions);
    	this.futureSetter = functions[0];
    	this.futureResult = functions[1];
    	this.futureGetter = functions[2];
    }
    
    private native static  void initialize_native(QFutureWatcher instance, io.qt.core.QObject parent, long[] functions);
    
    /**
     * See QFutureWatcher::future()const
     */
    @io.qt.QtUninvokable
    public final io.qt.core.@NonNull QFuture future(){
        return future(QtJambi_LibraryUtilities.internal.nativeId(this), futureGetter);
    }
    
    @io.qt.QtUninvokable
    private static native  io.qt.core.QFuture future(long nativeId, long futureGetter);
    
    /**
     * See QFutureWatcher::result()const
     */
    @io.qt.QtUninvokable
    public final T result(){
        return resultAt(0);
    }
    
    /**
     * See QFutureWatcher::resultAt(int)const
     */
    @io.qt.QtUninvokable
    public final T resultAt(int index){
		if(futureResult==0)
			throw new QNoImplementationException("resultAt(int) not available for QFutureWatcher.");
		return resultAt(QtJambi_LibraryUtilities.internal.nativeId(this), futureResult, index);
    }
    
    @io.qt.QtUninvokable
    private static native  T resultAt(long nativeId, long futureResult, int index);
    
    /**
     * See QFutureWatcher::setFuture(QFuture<T>)
     */
    @io.qt.QtUninvokable
    public final void setFuture(io.qt.core.@NonNull QFuture future){
		setFuture(QtJambi_LibraryUtilities.internal.nativeId(this), futureSetter, Objects.requireNonNull(future, "Argument 'future': null not expected."));
    }
    
    @io.qt.QtUninvokable
    private static native  void setFuture(long nativeId, long futureSetter, io.qt.core.QFuture future);
    
    /**
     * Constructor for internal use only.
     * @param p expected to be null.
     */
    @io.qt.NativeAccess
    private QFutureWatcher(long futureSetter, long futureResult, long futureGetter) { 
    	super((QPrivateConstructor)null);
    	this.futureSetter = futureSetter;
    	this.futureResult = futureResult;
    	this.futureGetter = futureGetter;
	} 
    
	private final long futureSetter;
    private final long futureResult;
    private final long futureGetter;
}