de.unkrig.commons.lang

Class ObjectUtil

java.lang.Object

de.unkrig.commons.lang.ObjectUtil

public final class ObjectUtil
extends java.lang.Object

Various java.lang.Object-related utility methods.

Method Summary

Modifier and Type	Method and Description
static <T> boolean	equals(T o1, T o2)
static <T> T	fromString(java.lang.String text, java.lang.Class<T> targetType) Converts a string to an object of the given targetType.
static <T> T	or(T lhs, T rhs)
static <T> java.lang.String	toString(T value, java.lang.String defaultValue)

Methods inherited from class java.lang.Object

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

Method Detail

equals

public static <T> boolean equals(@Nullable
                                 T o1,
                                 @Nullable
                                 T o2)

Returns:

Both arguments are null or equal, or are CharSequences with equal contents

toString

public static <T> java.lang.String toString(@Nullable
                                            T value,
                                            java.lang.String defaultValue)

Returns:

Returns value.toString() or the defaultValue iff value == null

or

public static <T> T or(@Nullable
                       T lhs,
                       T rhs)

Returns:

lhs, or rhs iff lhs == null

fromString

public static <T> T fromString(java.lang.String text,
                               java.lang.Class<T> targetType)

Converts a string to an object of the given targetType.

For primitive targetTypes, the corresponding wrapper object is returned.

Supports all primitive types (except void), their wrapper types, String, char[], Charset, Class, Pattern, and all other classes that have a single-string-parameter constructor.

Supports (one-dimensional) arrays of these types, where teh text is split into words at commas and/or whitespace, and each word converted to the component type.

Throws:

java.lang.NumberFormatException - The string could not be converted to the targetType

java.lang.IllegalArgumentException - The string could not be converted to the targetType

java.lang.RuntimeException - The string could not be converted to the targetType