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Summary: Ctors | Methods | Inherited Methods

CameraCharacteristics.Key

public static final class CameraCharacteristics.Key
extends Object

java.lang.Object
↳	android.hardware.camera2.CameraCharacteristics.Key<T>

A Key is used to do camera characteristics field lookups with CameraCharacteristics#get.

For example, to get the stream configuration map:

 StreamConfigurationMap map = cameraCharacteristics.get(
      CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);

To enumerate over all possible keys for CameraCharacteristics, see CameraCharacteristics#getKeys().

See also:

Summary

Public constructors
`Key(String name, Class<T> type)` Construct a new Key with a given name and type.

Public methods
`boolean`	`equals(Object o)` Indicates whether some other object is "equal to" this one.
`String`	`getName()` Return a camelCase, period separated name formatted like: `"root.section[.subsections].name"`.
`int`	`hashCode()` Returns a hash code value for the object.
`String`	`toString()` Return this `Key` as a string representation.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Public constructors

Key

public Key (String name, 
                Class<T> type)

Construct a new Key with a given name and type.

Normally, applications should use the existing Key definitions in CameraCharacteristics, and not need to construct their own Key objects. However, they may be useful for testing purposes and for defining custom camera characteristics.

Parameters
`name`	`String`: This value cannot be `null`.
`type`	`Class`: This value cannot be `null`.

Public methods

equals

public boolean equals (Object o)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).

Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.

Parameters
`o`	`Object`: the reference object with which to compare.

Returns
`boolean`	`true` if this object is the same as the obj argument; `false` otherwise.

getName

public String getName ()

Return a camelCase, period separated name formatted like: "root.section[.subsections].name".

Built-in keys exposed by the Android SDK are always prefixed with "android."; keys that are device/platform-specific are prefixed with "com.".

For example, CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP would have a name of "android.scaler.streamConfigurationMap"; whereas a device specific key might look like "com.google.nexus.data.private".

Returns
`String`	String representation of the key name This value cannot be `null`.

hashCode

public int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Java™ programming language.)

Returns
`int`	a hash code value for this object.

toString

public String toString ()

Return this Key as a string representation.

"CameraCharacteristics.Key(%s)", where %s represents the name of this key as returned by getName().

Returns
`String`	string representation of `Key` This value cannot be `null`.

Classes

Exceptions

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CameraCharacteristics.Key

Summary

Public constructors

Public methods

Inherited methods

Public constructors

Key

Public methods

equals

getName

hashCode

toString