Package org.apache.juneau.utils

Class BeanDiff

java.lang.Object

org.apache.juneau.utils.BeanDiff

@Bean(properties="v1,v2")
public class BeanDiff
extends Object

Utility class for comparing two versions of a POJO.

// Two beans to compare. MyBean bean1, bean2; // Get differences. BeanDiff beanDiff = BeanDiff.create(bean1, bean2).exclude("fooProperty").build(); // Check for differences. boolean hasDiff = beanDiff.hasDiffs(); JsonMap v1Diffs = beanDiff.getV1(); // Get version 1 differences. JsonMap v2Diffs = beanDiff.getV2(); // Get version 2 differences. // Display differences. System.err.println(beanDiff);

See Also:

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	BeanDiff.Builder<T>	Builder class.

Constructor Summary

Constructors

Constructor	Description
BeanDiff(BeanContext bc, T first, T second, Set<String> include, Set<String> exclude)	Constructor.

Method Summary

Modifier and Type	Method	Description
static <T> BeanDiff.Builder<T>	create(T first, T second)	Create a new builder for this class.
JsonMap	getV1()	Returns the differences in the first bean.
JsonMap	getV2()	Returns the differences in the second bean.
boolean	hasDiffs()	Returns true if the beans had differences.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

BeanDiff

public BeanDiff(BeanContext bc,
 T first,
 T second,
 Set<String> include,
 Set<String> exclude)

Constructor.

Type Parameters:

T - The bean types.

Parameters:

bc - The bean context to use for comparing beans.

first - The first bean to compare.

second - The second bean to compare.

include - Optional properties to include in the comparison.
If null, all properties are included.

exclude - Optional properties to exclude in the comparison.
If null, no properties are excluded.

Method Details

create

public static <T> BeanDiff.Builder<T> create(T first,
 T second)

Create a new builder for this class.

Type Parameters:

T - The bean types.

Parameters:

first - The first bean to compare.

second - The second bean to compare.

Returns:

A new builder.

hasDiffs

public boolean hasDiffs()

Returns true if the beans had differences.

Returns:

true if the beans had differences.

getV1

public JsonMap getV1()

Returns the differences in the first bean.

Returns:

The differences in the first bean.

getV2

public JsonMap getV2()

Returns the differences in the second bean.

Returns:

The differences in the second bean.

toString

public String toString()

Overrides:

toString in class Object