AssetOperator

java.lang.Object
- ohos.security.asset.AssetOperator

```
public class AssetOperator
extends Object
```
Implements the AssetOperatorAbs interfaces and provides the capability of storing key asset data.
The AssetOperator interfaces can be used to securely store, delete, update, and query key asset data, such as usernames and passwords.
This class implements the AssetOperatorAbs abstract class. For details about the abstract methods, see AssetOperatorAbs.

从以下版本开始:

1

SystemCapability

SystemCapability.Security#ASSET

字段概要

字段
限定符和类型	字段	说明
`static int`	`ASSET_TYPE_CREDIT_CARD`	Indicates the credit card information.
`static int`	`ASSET_TYPE_TOKEN`	Indicates the application token.
`static int`	`ASSET_TYPE_USERNAME_PASSWORD`	Indicates the username or password.
`static int`	`ERROR_CODE_DATABASE_ERROR`	Indicates a database operation exception.
`static int`	`ERROR_CODE_INVALID_ARGUMENT`	Indicates invalid parameters.
`static int`	`ERROR_CODE_PERMISSION_DENIED`	Indicates that permission verification fails.
`static int`	`ERROR_CODE_SYSTEM_ERROR`	Indicates a system error.
`static int`	`ERROR_CODE_UNINITIALIZED`	Indicates that the Asset service is not initialized.
`static int`	`ERROR_CODE_UNSECURED_ENVIRONMENT`	Indicates that the environment is insecure.
`static String`	`INTENT_PARAMS_KEY_ACCESSLIMITATION`	Indicates the identifier for restricted access.
`static String`	`INTENT_PARAMS_KEY_AEADASSET`	Indicates the data that cannot be processed in a batch, such as the password.
`static String`	`INTENT_PARAMS_KEY_APPTAG`	Indicates the application identity, such as the package name.
`static String`	`INTENT_PARAMS_KEY_ASSETHANDLE`	Indicates the data index value.
`static String`	`INTENT_PARAMS_KEY_ASSETTYPE`	Indicates the asset data type.
`static String`	`INTENT_PARAMS_KEY_AUTHENTICATELIMITATION`	Indicates the identifier for restricted authentication.
`static String`	`INTENT_PARAMS_KEY_BATCHASSET`	Indicates the data that can be processed in a batch, such as the username.
`static String`	`INTENT_PARAMS_KEY_EXTINFO`	Indicates the extended information.
`static String`	`INTENT_PARAMS_KEY_SELECT_MODE`	Indicates the query mode.
`static String`	`INTENT_PARAMS_KEY_SYNCLIMITATION`	Indicates the identifier for restricted synchronization.
`static int`	`SELECT_CONTINUE`	Indicates continuing with exact query.
`static int`	`SELECT_FROM_BEGIN`	Indicates a batch query starting from the beginning.
`static int`	`SELECT_ONCE`	Indicates a one-off exact query.
`static int`	`SUCCESS`	Indicates a successful operation.

方法概要

所有方法静态方法具体方法
限定符和类型方法说明

static AssetOperatorAbs getInstance()
Obtains an AssetOperatorAbs instance in the singleton pattern.
- 从类继承的方法 java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

所有方法静态方法具体方法
限定符和类型	方法	说明
`static AssetOperatorAbs`	`getInstance()`	Obtains an `AssetOperatorAbs` instance in the singleton pattern.

- 字段详细资料
  - ASSET_TYPE_CREDIT_CARD
```
public static final int ASSET_TYPE_CREDIT_CARD
```
    Indicates the credit card information.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - ASSET_TYPE_TOKEN
```
public static final int ASSET_TYPE_TOKEN
```
    Indicates the application token.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - ASSET_TYPE_USERNAME_PASSWORD
```
public static final int ASSET_TYPE_USERNAME_PASSWORD
```
    Indicates the username or password.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - ERROR_CODE_DATABASE_ERROR
```
public static final int ERROR_CODE_DATABASE_ERROR
```
    Indicates a database operation exception.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - ERROR_CODE_INVALID_ARGUMENT
```
public static final int ERROR_CODE_INVALID_ARGUMENT
```
    Indicates invalid parameters.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - ERROR_CODE_PERMISSION_DENIED
```
public static final int ERROR_CODE_PERMISSION_DENIED
```
    Indicates that permission verification fails.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - ERROR_CODE_SYSTEM_ERROR
```
public static final int ERROR_CODE_SYSTEM_ERROR
```
    Indicates a system error.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - ERROR_CODE_UNINITIALIZED
```
public static final int ERROR_CODE_UNINITIALIZED
```
    Indicates that the Asset service is not initialized.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - ERROR_CODE_UNSECURED_ENVIRONMENT
```
public static final int ERROR_CODE_UNSECURED_ENVIRONMENT
```
    Indicates that the environment is insecure.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - INTENT_PARAMS_KEY_ACCESSLIMITATION
```
public static final String INTENT_PARAMS_KEY_ACCESSLIMITATION
```
    Indicates the identifier for restricted access. This parameter is reserved.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - INTENT_PARAMS_KEY_AEADASSET
```
public static final String INTENT_PARAMS_KEY_AEADASSET
```
    Indicates the data that cannot be processed in a batch, such as the password.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - INTENT_PARAMS_KEY_APPTAG
```
public static final String INTENT_PARAMS_KEY_APPTAG
```
    Indicates the application identity, such as the package name.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - INTENT_PARAMS_KEY_ASSETHANDLE
```
public static final String INTENT_PARAMS_KEY_ASSETHANDLE
```
    Indicates the data index value.
    This constant can be used to input data index values for an exact query.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - INTENT_PARAMS_KEY_ASSETTYPE
```
public static final String INTENT_PARAMS_KEY_ASSETTYPE
```
    Indicates the asset data type.
    Supported values include ASSET_TYPE_USERNAME_PASSWORD, ASSET_TYPE_CREDIT_CARD, and ASSET_TYPE_TOKEN. The default value is ASSET_TYPE_USERNAME_PASSWORD.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - INTENT_PARAMS_KEY_AUTHENTICATELIMITATION
```
public static final String INTENT_PARAMS_KEY_AUTHENTICATELIMITATION
```
    Indicates the identifier for restricted authentication. This parameter is reserved.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - INTENT_PARAMS_KEY_BATCHASSET
```
public static final String INTENT_PARAMS_KEY_BATCHASSET
```
    Indicates the data that can be processed in a batch, such as the username.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - INTENT_PARAMS_KEY_EXTINFO
```
public static final String INTENT_PARAMS_KEY_EXTINFO
```
    Indicates the extended information.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - INTENT_PARAMS_KEY_SELECT_MODE
```
public static final String INTENT_PARAMS_KEY_SELECT_MODE
```
    Indicates the query mode.
    This constant can be used to set the exact or batch query mode when the AssetOperatorAbs#assetSelect(Ability, IntentParams) interface is called. The constant value can be SELECT_ONCE, SELECT_FROM_BEGIN, or SELECT_CONTINUE.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - INTENT_PARAMS_KEY_SYNCLIMITATION
```
public static final String INTENT_PARAMS_KEY_SYNCLIMITATION
```
    Indicates the identifier for restricted synchronization. This parameter is reserved.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - SELECT_CONTINUE
```
public static final int SELECT_CONTINUE
```
    Indicates continuing with exact query.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - SELECT_FROM_BEGIN
```
public static final int SELECT_FROM_BEGIN
```
    Indicates a batch query starting from the beginning.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - SELECT_ONCE
```
public static final int SELECT_ONCE
```
    Indicates a one-off exact query.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - SUCCESS
```
public static final int SUCCESS
```
    Indicates a successful operation.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
- 方法详细资料
  - getInstance
```
public static AssetOperatorAbs getInstance()
```
    Obtains an AssetOperatorAbs instance in the singleton pattern.
    You can use the obtained instance to invoke the abstract methods of the AssetOperatorAbs abstract class. You cannot use the new method to create instances.
    
    返回:
    
    Returns the AssetOperatorAbs instance.
    
    从以下版本开始:
    
    1

类 AssetOperator

字段概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

ASSET_TYPE_CREDIT_CARD

ASSET_TYPE_TOKEN

ASSET_TYPE_USERNAME_PASSWORD

ERROR_CODE_DATABASE_ERROR

ERROR_CODE_INVALID_ARGUMENT

ERROR_CODE_PERMISSION_DENIED

ERROR_CODE_SYSTEM_ERROR

ERROR_CODE_UNINITIALIZED

ERROR_CODE_UNSECURED_ENVIRONMENT

INTENT_PARAMS_KEY_ACCESSLIMITATION

INTENT_PARAMS_KEY_AEADASSET

INTENT_PARAMS_KEY_APPTAG

INTENT_PARAMS_KEY_ASSETHANDLE

INTENT_PARAMS_KEY_ASSETTYPE

INTENT_PARAMS_KEY_AUTHENTICATELIMITATION

INTENT_PARAMS_KEY_BATCHASSET

INTENT_PARAMS_KEY_EXTINFO

INTENT_PARAMS_KEY_SELECT_MODE

INTENT_PARAMS_KEY_SYNCLIMITATION

SELECT_CONTINUE

SELECT_FROM_BEGIN

SELECT_ONCE

SUCCESS

方法详细资料

getInstance