Package net.sf.jasperreports.engine.util

Class ObjectUtils

java.lang.Object

net.sf.jasperreports.engine.util.ObjectUtils

public class ObjectUtils
extends Object

Object comparison and hashing utilities.

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ObjectUtils.HashCode	Hash code creator for objects.

Constructor Summary

Constructors

Constructor	Description
ObjectUtils()

Method Summary

Modifier and Type	Method	Description
static boolean	equals(boolean b1, boolean b2)	Determines whether two boolean values are equal.
static boolean	equals(float f1, float f2)
static boolean	equals(int i1, int i2)	Determines whether two integer values are equal.
static <T extends Enum<T>> boolean	equals(Enum<T> o1, Enum<T> o2)	Determines whether two enum values are equal.
static boolean	equals(Object o1, Object o2)	Determines whether two objects are equal, including null values.
static boolean	equals(JRPropertiesMap p1, JRPropertiesMap p2)	Determines whether two property sets are identical.
static boolean	equalsIdentity(Object o1, Object o2)	Determines whether two objects are the same as instances.
static ObjectUtils.HashCode	hash()	Returns a fresh hash code creator.
static int	hashCode(Object o)
static boolean	identical(Object[] v1, Object[] v2)	Determines whether two arrays of objects are identical.
static boolean	identical(Object o1, Object o2)	Determines whether two objects are identical.
static boolean	identical(List<?> l1, List<?> l2)	Determines whether two lists of objects are identical.

Methods inherited from class java.lang.Object

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

Constructor Details

ObjectUtils

public ObjectUtils()

Method Details

hash

public static ObjectUtils.HashCode hash()

Returns a fresh hash code creator.

Returns:

a fresh hash code creator

hashCode

public static int hashCode(Object o)

equalsIdentity

public static boolean equalsIdentity(Object o1,
 Object o2)

Determines whether two objects are the same as instances.

Parameters:

o1 -

o2 -

Returns:

whether the two objects are the same as instances

identical

public static boolean identical(Object o1,
 Object o2)

Determines whether two objects are identical. If the objects implement Deduplicable, the deduplication method is used to compare the objects. Otherwise, Object.equals is used.

Parameters:

o1 -

o2 -

Returns:

whether the two objects are identical

identical

public static boolean identical(Object[] v1,
 Object[] v2)

Determines whether two arrays of objects are identical.

Parameters:

v1 -

v2 -

Returns:

whether the two arrays are identical

See Also:

• identical(Object, Object)

identical

public static boolean identical(List<?> l1,
 List<?> l2)

Determines whether two lists of objects are identical.

Parameters:

l1 -

l2 -

Returns:

whether the two lists of objects are identical

See Also:

• identical(Object, Object)

equals

public static boolean equals(Object o1,
 Object o2)

Determines whether two objects are equal, including null values.

Parameters:

o1 -

o2 -

Returns:

whether the two objects are equal

equals

public static <T extends Enum<T>> boolean equals(Enum<T> o1,
 Enum<T> o2)

Determines whether two enum values are equal.

Parameters:

o1 -

o2 -

Returns:

whether the two enum values are equal

equals

public static boolean equals(boolean b1,
 boolean b2)

Determines whether two boolean values are equal.

Parameters:

b1 -

b2 -

Returns:

whether the two values are equal

equals

public static boolean equals(int i1,
 int i2)

Determines whether two integer values are equal.

Parameters:

i1 -

i2 -

Returns:

whether the two values are equal

equals

public static boolean equals(float f1,
 float f2)

equals

public static boolean equals(JRPropertiesMap p1,
 JRPropertiesMap p2)

Determines whether two property sets are identical.

Parameters:

p1 -

p2 -

Returns:

whether the two property sets are identical