# Policy Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary:[Nested Classes](https://developer.android.com/reference/java/security/Policy#nestedclasses)\|[Fields](https://developer.android.com/reference/java/security/Policy#lfields)\|[Ctors](https://developer.android.com/reference/java/security/Policy#pubctors)\|[Methods](https://developer.android.com/reference/java/security/Policy#pubmethods)\|[Inherited Methods](https://developer.android.com/reference/java/security/Policy#inhmethods) # Policy ` public abstract class Policy ` ` extends `[Object](https://developer.android.com/reference/java/lang/Object)` `` ` |---|----------------------| | [java.lang.Object](https://developer.android.com/reference/java/lang/Object) || | ↳ | java.security.Policy |
*** ** * ** *** Android doesn't support[SecurityManager](https://developer.android.com/reference/java/lang/SecurityManager). Do not use this class. ## Summary | ### Nested classes || |--------------|-----------------------------------------------------------------------------------------------------| | ` interface` | [Policy.Parameters](https://developer.android.com/reference/java/security/Policy.Parameters)
| | ### Fields || |---------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------| | ` public static final `[PermissionCollection](https://developer.android.com/reference/java/security/PermissionCollection) | [UNSUPPORTED_EMPTY_COLLECTION](https://developer.android.com/reference/java/security/Policy#UNSUPPORTED_EMPTY_COLLECTION)
| | ### Public constructors || |-----------------------------------------------------------------------------------------|---| | ` `[Policy](https://developer.android.com/reference/java/security/Policy#Policy())`() ` | | ### Public methods || |-------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` static `[Policy](https://developer.android.com/reference/java/security/Policy) | ` `[getInstance](https://developer.android.com/reference/java/security/Policy#getInstance(java.lang.String,%20java.security.Policy.Parameters))`(`[String](https://developer.android.com/reference/java/lang/String)` type, `[Policy.Parameters](https://developer.android.com/reference/java/security/Policy.Parameters)` params) ` | | ` static `[Policy](https://developer.android.com/reference/java/security/Policy) | ` `[getInstance](https://developer.android.com/reference/java/security/Policy#getInstance(java.lang.String,%20java.security.Policy.Parameters,%20java.security.Provider))`(`[String](https://developer.android.com/reference/java/lang/String)` type, `[Policy.Parameters](https://developer.android.com/reference/java/security/Policy.Parameters)` params, `[Provider](https://developer.android.com/reference/java/security/Provider)` provider) ` | | ` static `[Policy](https://developer.android.com/reference/java/security/Policy) | ` `[getInstance](https://developer.android.com/reference/java/security/Policy#getInstance(java.lang.String,%20java.security.Policy.Parameters,%20java.lang.String))`(`[String](https://developer.android.com/reference/java/lang/String)` type, `[Policy.Parameters](https://developer.android.com/reference/java/security/Policy.Parameters)` params, `[String](https://developer.android.com/reference/java/lang/String)` provider) ` | | ` `[Policy.Parameters](https://developer.android.com/reference/java/security/Policy.Parameters) | ` `[getParameters](https://developer.android.com/reference/java/security/Policy#getParameters())`() ` | | ` `[PermissionCollection](https://developer.android.com/reference/java/security/PermissionCollection) | ` `[getPermissions](https://developer.android.com/reference/java/security/Policy#getPermissions(java.security.ProtectionDomain))`(`[ProtectionDomain](https://developer.android.com/reference/java/security/ProtectionDomain)` domain) ` | | ` `[PermissionCollection](https://developer.android.com/reference/java/security/PermissionCollection) | ` `[getPermissions](https://developer.android.com/reference/java/security/Policy#getPermissions(java.security.CodeSource))`(`[CodeSource](https://developer.android.com/reference/java/security/CodeSource)` codesource) ` | | ` static `[Policy](https://developer.android.com/reference/java/security/Policy) | ` `[getPolicy](https://developer.android.com/reference/java/security/Policy#getPolicy())`() ` | | ` `[Provider](https://developer.android.com/reference/java/security/Provider) | ` `[getProvider](https://developer.android.com/reference/java/security/Policy#getProvider())`() ` | | ` `[String](https://developer.android.com/reference/java/lang/String) | ` `[getType](https://developer.android.com/reference/java/security/Policy#getType())`() ` | | ` boolean` | ` `[implies](https://developer.android.com/reference/java/security/Policy#implies(java.security.ProtectionDomain,%20java.security.Permission))`(`[ProtectionDomain](https://developer.android.com/reference/java/security/ProtectionDomain)` domain, `[Permission](https://developer.android.com/reference/java/security/Permission)` permission) ` | | ` void` | ` `[refresh](https://developer.android.com/reference/java/security/Policy#refresh())`() ` | | ` static void` | ` `[setPolicy](https://developer.android.com/reference/java/security/Policy#setPolicy(java.security.Policy))`(`[Policy](https://developer.android.com/reference/java/security/Policy)` p) ` | | ### Inherited methods | |-----------------------|---| | From class` `[java.lang.Object](https://developer.android.com/reference/java/lang/Object)` ` |--------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[Object](https://developer.android.com/reference/java/lang/Object) | ` `[clone](https://developer.android.com/reference/java/lang/Object#clone())`() ` Creates and returns a copy of this object. | | ` boolean` | ` `[equals](https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object))`(`[Object](https://developer.android.com/reference/java/lang/Object)` obj) ` Indicates whether some other object is "equal to" this one. | | ` void` | ` `[finalize](https://developer.android.com/reference/java/lang/Object#finalize())`() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. | | ` final `[Class](https://developer.android.com/reference/java/lang/Class)`` | ` `[getClass](https://developer.android.com/reference/java/lang/Object#getClass())`() ` Returns the runtime class of this`Object`. | | ` int` | ` `[hashCode](https://developer.android.com/reference/java/lang/Object#hashCode())`() ` Returns a hash code value for the object. | | ` final void` | ` `[notify](https://developer.android.com/reference/java/lang/Object#notify())`() ` Wakes up a single thread that is waiting on this object's monitor. | | ` final void` | ` `[notifyAll](https://developer.android.com/reference/java/lang/Object#notifyAll())`() ` Wakes up all threads that are waiting on this object's monitor. | | ` `[String](https://developer.android.com/reference/java/lang/String) | ` `[toString](https://developer.android.com/reference/java/lang/Object#toString())`() ` Returns a string representation of the object. | | ` final void` | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long,%20int))`(long timeoutMillis, int nanos) ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long))`(long timeoutMillis) ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait())`() ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*. | || ## Fields ### UNSUPPORTED_EMPTY_COLLECTION Added in[API level 9](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public static final PermissionCollection UNSUPPORTED_EMPTY_COLLECTION ```

## Public constructors ### Policy Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public Policy () ```

## Public methods ### getInstance Added in[API level 9](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public static Policy getInstance (String type, Policy.Parameters params) ```

| Parameters || |----------|----------------------------| | `type` | `String`
| | `params` | `Policy.Parameters`
| | Returns || |------------------------------------------------------------------------|--------| | [Policy](https://developer.android.com/reference/java/security/Policy) |
| | Throws || |------------------------------------------------------------------------------------------------------------|---| | [NoSuchAlgorithmException](https://developer.android.com/reference/java/security/NoSuchAlgorithmException) | | ### getInstance Added in[API level 9](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public static Policy getInstance (String type, Policy.Parameters params, Provider provider) ```

| Parameters || |------------|----------------------------| | `type` | `String`
| | `params` | `Policy.Parameters`
| | `provider` | `Provider`
| | Returns || |------------------------------------------------------------------------|--------| | [Policy](https://developer.android.com/reference/java/security/Policy) |
| | Throws || |------------------------------------------------------------------------------------------------------------|---| | [NoSuchAlgorithmException](https://developer.android.com/reference/java/security/NoSuchAlgorithmException) | | ### getInstance Added in[API level 9](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public static Policy getInstance (String type, Policy.Parameters params, String provider) ```

| Parameters || |------------|----------------------------| | `type` | `String`
| | `params` | `Policy.Parameters`
| | `provider` | `String`
| | Returns || |------------------------------------------------------------------------|--------| | [Policy](https://developer.android.com/reference/java/security/Policy) |
| | Throws || |------------------------------------------------------------------------------------------------------------|---| | [NoSuchAlgorithmException](https://developer.android.com/reference/java/security/NoSuchAlgorithmException) | | | [NoSuchProviderException](https://developer.android.com/reference/java/security/NoSuchProviderException) | | ### getParameters Added in[API level 9](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public Policy.Parameters getParameters () ```

| Returns || |----------------------------------------------------------------------------------------------|--------| | [Policy.Parameters](https://developer.android.com/reference/java/security/Policy.Parameters) |
| ### getPermissions Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public PermissionCollection getPermissions (ProtectionDomain domain) ```

| Parameters || |----------|---------------------------| | `domain` | `ProtectionDomain`
| | Returns || |----------------------------------------------------------------------------------------------------|--------| | [PermissionCollection](https://developer.android.com/reference/java/security/PermissionCollection) |
| ### getPermissions Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public PermissionCollection getPermissions (CodeSource codesource) ```

| Parameters || |--------------|---------------------| | `codesource` | `CodeSource`
| | Returns || |----------------------------------------------------------------------------------------------------|--------| | [PermissionCollection](https://developer.android.com/reference/java/security/PermissionCollection) |
| ### getPolicy Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public static Policy getPolicy () ```

| Returns || |------------------------------------------------------------------------|--------| | [Policy](https://developer.android.com/reference/java/security/Policy) |
| ### getProvider Added in[API level 9](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public Provider getProvider () ```

| Returns || |----------------------------------------------------------------------------|--------| | [Provider](https://developer.android.com/reference/java/security/Provider) |
| ### getType Added in[API level 9](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public String getType () ```

| Returns || |--------------------------------------------------------------------|--------| | [String](https://developer.android.com/reference/java/lang/String) |
| ### implies Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public boolean implies (ProtectionDomain domain, Permission permission) ```

| Parameters || |--------------|---------------------------| | `domain` | `ProtectionDomain`
| | `permission` | `Permission`
| | Returns || |-----------|--------| | `boolean` |
| ### refresh Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public void refresh () ```

### setPolicy Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) ``` public static void setPolicy (Policy p) ```

| Parameters || |-----|-----------------| | `p` | `Policy`
|