repeater.qml

import QtQuick 2.3

Rectangle {
    id: root
    width: 360
    height: 360

    Component {
        id: someComponent
        Item {
            objectName: "Item_n_" + index
            Component.onCompleted: console.log("objectName:", objectName)
        }
    }

    Repeater {
        objectName: "repeater"
        delegate: someComponent
        model: 10
    }

    Component.onCompleted: {
        for (var i = 0; i < root.children.length; ++i)
            console.log("child objectName:", root.children[i].objectName)
    }
}