Example usage for java.beans FeatureDescriptor getName

Introduction

In this page you can find the example usage for java.beans FeatureDescriptor getName.

Prototype

public String getName() 

Source Link

Document

Gets the programmatic name of this feature.

Usage

From source file:therian.util.BeanProperties.java

public static Set<String> getPropertyNames(ReturnProperties returnProperties, TherianContext context,
        Position.Readable<?> position) {

    List<? extends FeatureDescriptor> descriptors;
    // first try ELResolver:

    try {/*from w w w.j a v a 2s .c o m*/
        descriptors = IteratorUtils
                .toList(context.getELResolver().getFeatureDescriptors(context, position.getValue()));
    } catch (Exception e) {
        descriptors = null;
    }

    if (CollectionUtils.isEmpty(descriptors)) {
        // java.beans introspection; on RT type if available, else raw position type:
        final Class<?> beanType;
        if (position.getValue() == null) {
            beanType = TypeUtils.getRawType(position.getType(), null);
        } else {
            beanType = position.getValue().getClass();
        }
        try {
            descriptors = Arrays.asList(Introspector.getBeanInfo(beanType).getPropertyDescriptors());
        } catch (IntrospectionException e1) {
            return Collections.emptySet();
        }
    }

    final Set<String> result = new HashSet<>();
    for (final FeatureDescriptor fd : descriptors) {
        final String name = fd.getName();
        if (returnProperties == ReturnProperties.WRITABLE) {
            try {
                if (context.getELResolver().isReadOnly(context, position.getValue(), name)) {
                    continue;
                }
            } catch (Exception e) {
                // if we can't even _check_ for readOnly, assume not writable:
                continue;
            }
        }
        result.add(name);
    }
    return result;
}

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