public final class MoreObjects
extends java.lang.Object
| Modifier and Type | Class and Description |
|---|---|
static class |
MoreObjects.ToStringHelper
Support class for
toStringHelper(java.lang.Object). |
| Modifier and Type | Method and Description |
|---|---|
static <T> T |
firstNonNull(T first,
T second) |
static MoreObjects.ToStringHelper |
toStringHelper(java.lang.Object self)
Creates an instance of
MoreObjects.ToStringHelper. |
public static <T> T firstNonNull(T first,
T second)
@Nonnull public static MoreObjects.ToStringHelper toStringHelper(@Nonnull java.lang.Object self)
MoreObjects.ToStringHelper.
This is helpful for implementing Object.toString().
Specification by example:
// Returns "ClassName{}"
MoreObjects.toStringHelper(this)
.toString();
// Returns "ClassName{x=1}"
MoreObjects.toStringHelper(this)
.add("x", 1)
.toString();
// Returns "MyObject{x=1}"
MoreObjects.toStringHelper("MyObject")
.add("x", 1)
.toString();
// Returns "ClassName{x=1, y=foo}"
MoreObjects.toStringHelper(this)
.add("x", 1)
.add("y", "foo")
.toString();
// Returns "ClassName{x=1}"
MoreObjects.toStringHelper(this)
.omitNullValues()
.add("x", 1)
.add("y", null)
.toString();
}
Note that in GWT, class names are often obfuscated.
self - the object to generate the string for (typically this), used only for its
class nameObjects.toStringHelper()).