Package org.apache.juneau.junit.bct

Class PropertyExtractors.ObjectPropertyExtractor

java.lang.Object

org.apache.juneau.junit.bct.PropertyExtractors.ObjectPropertyExtractor

All Implemented Interfaces:

PropertyExtractor

Direct Known Subclasses:

PropertyExtractors.ListPropertyExtractor, PropertyExtractors.MapPropertyExtractor

Enclosing class:

PropertyExtractors

public static class PropertyExtractors.ObjectPropertyExtractor
extends Object
implements PropertyExtractor

Standard JavaBean property extractor using reflection.

This extractor serves as the universal fallback for property access, implementing comprehensive JavaBean property access patterns. It tries multiple approaches to access object properties, providing maximum compatibility with different coding styles.

Property Access Order:

1. is{Property}() - Boolean property getters (e.g., isActive())
2. get{Property}() - Standard getter methods (e.g., getName())
3. get(String) - Map-style property access with property name as parameter
4. Fields - Public fields with matching names (searches inheritance hierarchy)
5. {property}() - No-argument methods with exact property name

Examples:

// Property "name" can be accessed via: obj.getName() // Standard getter obj.name // Public field obj.name() // Method with property name obj.get("name") // Map-style getter // Property "active" (boolean) can be accessed via: obj.isActive() // Boolean getter obj.getActive() // Standard getter alternative obj.active // Public field

Compatibility: This extractor can handle any object type, making it the universal fallback. It always returns true from canExtract(BeanConverter, Object, String).

Constructor Summary

Constructors

Constructor	Description
ObjectPropertyExtractor()

Method Summary

Modifier and Type	Method	Description
boolean	canExtract(BeanConverter converter, Object o, String name)	Determines if this extractor can handle property access for the given object and property name.
Object	extract(BeanConverter converter, Object o, String name)	Extracts the specified property value from the given object.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ObjectPropertyExtractor

public ObjectPropertyExtractor()

Method Details

canExtract

public boolean canExtract(BeanConverter converter,
 Object o,
 String name)

Description copied from interface: PropertyExtractor

Determines if this extractor can handle property access for the given object and property name.

This method should perform a quick check to determine compatibility without doing expensive operations. It's called frequently during property navigation.

Specified by:

canExtract in interface PropertyExtractor

Parameters:

converter - The bean converter instance (for recursive operations if needed)

o - The object to extract the property from

name - The property name to extract

Returns:

true if this extractor can handle the property access, false otherwise

extract

public Object extract(BeanConverter converter,
 Object o,
 String name)

Description copied from interface: PropertyExtractor

Extracts the specified property value from the given object.

This method is only called after PropertyExtractor.canExtract(BeanConverter, Object, String) returns true. It should perform the actual property extraction and return the property value.

Specified by:

extract in interface PropertyExtractor

Parameters:

converter - The bean converter instance (for recursive operations if needed)

o - The object to extract the property from

name - The property name to extract

Returns:

The property value