DefaultValueExtractor (Comparator 2.4.1 API)

java.lang.Object
- org.bremersee.comparator.DefaultValueExtractor

All Implemented Interfaces:

ValueExtractor
```
public class DefaultValueExtractor
extends Object
implements ValueExtractor
```
The default value extractor supports field names and paths as described in ComparatorField. A field name can be just the field name (e. g. firstName), a method name, that is not generated by ValueExtractor.getPossibleMethodNames(String) (e. g. toString) or a path of field names separated by dots (.), e. g. person.firstName.

Author:

Christian Bremer

Constructor Summary

Constructors
Constructor	Description
`DefaultValueExtractor()`	Instantiates a new default value extractor that will throw `ValueExtractorException`, if the given field cannot be found.
`DefaultValueExtractor(boolean throwingException)`	Instantiates a new default value extractor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Object`	`findValue(Object obj, String fieldPath)`	Find the value of the given add name or path of the given object.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.bremersee.comparator.ValueExtractor
findField, findField, findMethod, findMethod, getPossibleMethodNames, invoke, invoke

- Constructor Detail
  - DefaultValueExtractor
```
public DefaultValueExtractor()
```
    Instantiates a new default value extractor that will throw ValueExtractorException, if the given field cannot be found.
  - DefaultValueExtractor
```
public DefaultValueExtractor(boolean throwingException)
```
    Instantiates a new default value extractor.
    
    Parameters:
    
    throwingException - if true and the given field cannot be found, ValueExtractorException will be thrown; otherwise null will be returned
- Method Detail
  - findValue
```
public Object findValue(Object obj,
                        String fieldPath)
```
    Description copied from interface: ValueExtractor
    
    Find the value of the given add name or path of the given object.
    
    Specified by:
    
    findValue in interface ValueExtractor
    
    Parameters:
    
    obj - the object
    
    fieldPath - the field name or path
    
    Returns:
    
    the object