Example usage for org.apache.commons.collections4 IteratorUtils objectGraphIterator

Introduction

In this page you can find the example usage for org.apache.commons.collections4 IteratorUtils objectGraphIterator.

Prototype

public static <E> Iterator<E> objectGraphIterator(final E root,
        final Transformer<? super E, ? extends E> transformer) 

Source Link

Document

Gets an iterator that operates over an object graph.

Usage

From source file:com.link_intersystems.beans.BeanClass.java

/**
 * Returns true if the method is a method to access a property (either get,
 * is, set). The equality is based on the method's signature. This means
 * that even property accessor methods in super classes will be recognized
 * as property accessor methods of this {@link BeanClass}.
 *
 * @param method//from   w w  w  . ja  v  a2s  .c om
 *            the method to test if it is a property accessor method of this
 *            class.
 * @return true if the given method is a property accessor method of this
 *         class.
 * @since 1.2.0.0
 */
@SuppressWarnings("unchecked")
public boolean isPropertyAccessor(Method method) {
    Class<?> declaringClass = method.getDeclaringClass();
    Class<T> beanType = getType();
    boolean isInHierarchy = declaringClass.isAssignableFrom(beanType);
    if (!isInHierarchy) {
        return false;
    }
    Map<String, PropertyDescriptor> propertyDescriptors = getPropertyDescriptors();
    Collection<PropertyDescriptor> propertyDescriptorCollection = propertyDescriptors.values();
    Predicate predicate = new SignaturePredicate(method);
    Iterator<Method> propertyMethodsIterator = IteratorUtils.objectGraphIterator(
            propertyDescriptorCollection.iterator(), PropertyDescriptor2AccessorsTransformer.INSTANCE);
    Iterator<Method> filteredIterator = IteratorUtils.filteredIterator(propertyMethodsIterator, predicate);
    return filteredIterator.hasNext();
}

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