Example usage for org.springframework.beans.factory.support NullBean NullBean

Introduction

In this page you can find the example usage for org.springframework.beans.factory.support NullBean NullBean.

Prototype

NullBean() 

Source Link

Usage

From source file:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.java

/**
 * Obtain a bean instance from the given supplier.
 * @param instanceSupplier the configured supplier
 * @param beanName the corresponding bean name
 * @return a BeanWrapper for the new instance
 * @since 5.0/*  w w w .j  av a 2 s.  c  om*/
 * @see #getObjectForBeanInstance
 */
protected BeanWrapper obtainFromSupplier(Supplier<?> instanceSupplier, String beanName) {
    Object instance;

    String outerBean = this.currentlyCreatedBean.get();
    this.currentlyCreatedBean.set(beanName);
    try {
        instance = instanceSupplier.get();
    } finally {
        if (outerBean != null) {
            this.currentlyCreatedBean.set(outerBean);
        } else {
            this.currentlyCreatedBean.remove();
        }
    }

    if (instance == null) {
        instance = new NullBean();
    }
    BeanWrapper bw = new BeanWrapperImpl(instance);
    initBeanWrapper(bw);
    return bw;
}

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