Package com.google.api.client.util
Class Objects
- java.lang.Object
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- com.google.api.client.util.Objects
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public final class Objects extends Object
Helper functions that can operate on anyObject
.- Since:
- 1.14
- Author:
- Yaniv Inbar
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
Objects.ToStringHelper
Support class fortoStringHelper(java.lang.Object)
.
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static boolean
equal(Object a, Object b)
Determines whether two possibly-null objects are equal.static Objects.ToStringHelper
toStringHelper(Object self)
Creates an instance ofObjects.ToStringHelper
.
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Method Detail
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equal
public static boolean equal(Object a, Object b)
Determines whether two possibly-null objects are equal. Returns:true
ifa
andb
are both null.true
ifa
andb
are both non-null and they are equal according toObject.equals(Object)
.false
in all other situations.
This assumes that any non-null objects passed to this function conform to the
equals()
contract.
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toStringHelper
public static Objects.ToStringHelper toStringHelper(Object self)
Creates an instance ofObjects.ToStringHelper
.This is helpful for implementing
Object.toString()
. Specification by example:// Returns "ClassName{}" Objects.toStringHelper(this) .toString(); // Returns "ClassName{x=1}" Objects.toStringHelper(this) .add("x", 1) .toString(); // Returns "MyObject{x=1}" Objects.toStringHelper("MyObject") .add("x", 1) .toString(); // Returns "ClassName{x=1, y=foo}" Objects.toStringHelper(this) .add("x", 1) .add("y", "foo") .toString(); // Returns "ClassName{x=1}" Objects.toStringHelper(this) .omitNullValues() .add("x", 1) .add("y", null) .toString();
- Parameters:
self
- the object to generate the string for (typicallythis
), used only for its class name
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