SQLiteDatabase.OpenParams.Builder
public
static
final
class
SQLiteDatabase.OpenParams.Builder
extends Object
java.lang.Object | |
↳ | android.database.sqlite.SQLiteDatabase.OpenParams.Builder |
Builder for OpenParams
.
Summary
Public constructors | |
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Builder()
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Builder(SQLiteDatabase.OpenParams params)
|
Public methods | |
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SQLiteDatabase.OpenParams.Builder
|
addOpenFlags(int openFlags)
Adds flags to control database access mode |
SQLiteDatabase.OpenParams
|
build()
Creates an instance of |
SQLiteDatabase.OpenParams.Builder
|
removeOpenFlags(int openFlags)
Removes database access mode flags |
SQLiteDatabase.OpenParams.Builder
|
setCursorFactory(SQLiteDatabase.CursorFactory cursorFactory)
Set an optional factory class that is called to instantiate a cursor when query is called. |
SQLiteDatabase.OpenParams.Builder
|
setErrorHandler(DatabaseErrorHandler errorHandler)
Sets |
SQLiteDatabase.OpenParams.Builder
|
setIdleConnectionTimeout(long idleConnectionTimeoutMs)
This method was deprecated in API level 29. DO NOT USE this method. See the javadoc for the details. |
SQLiteDatabase.OpenParams.Builder
|
setJournalMode(String journalMode)
Sets journal mode to use. |
SQLiteDatabase.OpenParams.Builder
|
setLookasideConfig(int slotSize, int slotCount)
Configures lookaside memory allocator SQLite default settings will be used, if this method isn't called. |
SQLiteDatabase.OpenParams.Builder
|
setOpenFlags(int openFlags)
Sets flags to control database access mode |
SQLiteDatabase.OpenParams.Builder
|
setSynchronousMode(String syncMode)
Sets synchronous mode Note: If sync mode is not set, the platform will use a manufactured-specified default which can vary across devices. |
Inherited methods | |
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Public constructors
Builder
public Builder (SQLiteDatabase.OpenParams params)
Parameters | |
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params |
SQLiteDatabase.OpenParams |
Public methods
addOpenFlags
public SQLiteDatabase.OpenParams.Builder addOpenFlags (int openFlags)
Adds flags to control database access mode
Parameters | |
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openFlags |
int : The new flags to add
Value is either 0 or a combination of SQLiteDatabase.OPEN_READWRITE , SQLiteDatabase.OPEN_READONLY , SQLiteDatabase.CREATE_IF_NECESSARY , SQLiteDatabase.NO_LOCALIZED_COLLATORS , and SQLiteDatabase.ENABLE_WRITE_AHEAD_LOGGING |
Returns | |
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SQLiteDatabase.OpenParams.Builder |
same builder instance for chaining multiple calls into a single statement
This value cannot be null . |
build
public SQLiteDatabase.OpenParams build ()
Creates an instance of OpenParams
with the options that were previously set
on this builder
Returns | |
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SQLiteDatabase.OpenParams |
This value cannot be null . |
removeOpenFlags
public SQLiteDatabase.OpenParams.Builder removeOpenFlags (int openFlags)
Removes database access mode flags
Parameters | |
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openFlags |
int : Flags to remove
Value is either 0 or a combination of SQLiteDatabase.OPEN_READWRITE , SQLiteDatabase.OPEN_READONLY , SQLiteDatabase.CREATE_IF_NECESSARY , SQLiteDatabase.NO_LOCALIZED_COLLATORS , and SQLiteDatabase.ENABLE_WRITE_AHEAD_LOGGING |
Returns | |
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SQLiteDatabase.OpenParams.Builder |
same builder instance for chaining multiple calls into a single statement
This value cannot be null . |
setCursorFactory
public SQLiteDatabase.OpenParams.Builder setCursorFactory (SQLiteDatabase.CursorFactory cursorFactory)
Set an optional factory class that is called to instantiate a cursor when query is called.
Parameters | |
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cursorFactory |
SQLiteDatabase.CursorFactory : instance
This value may be null . |
Returns | |
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SQLiteDatabase.OpenParams.Builder |
same builder instance for chaining multiple calls into a single statement
This value cannot be null . |
setErrorHandler
public SQLiteDatabase.OpenParams.Builder setErrorHandler (DatabaseErrorHandler errorHandler)
Sets DatabaseErrorHandler
object to handle db corruption errors
Parameters | |
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errorHandler |
DatabaseErrorHandler : This value may be null . |
Returns | |
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SQLiteDatabase.OpenParams.Builder |
This value cannot be null . |
setIdleConnectionTimeout
public SQLiteDatabase.OpenParams.Builder setIdleConnectionTimeout (long idleConnectionTimeoutMs)
This method was deprecated
in API level 29.
DO NOT USE this method. See the javadoc for the details.
Sets the maximum number of milliseconds that SQLite connection is allowed to be idle before it is closed and removed from the pool.
DO NOT USE this method. This feature has negative side effects that are very hard to foresee.
A connection timeout allows the system to internally close a connection to
a SQLite database after a given timeout, which is good for reducing app's memory
consumption.
However the side effect is it will reset all of SQLite's per-connection
states, which are typically modified with a PRAGMA
statement, and
these states will not be restored when a connection is re-established
internally, and the system does not provide a callback for an app to reconfigure a
connection.
This feature may only be used if an app relies on none of such per-connection states.
Parameters | |
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idleConnectionTimeoutMs |
long : timeout in milliseconds. Use Long#MAX_VALUE
to allow unlimited idle connections.
Value is 0 or greater |
Returns | |
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SQLiteDatabase.OpenParams.Builder |
This value cannot be null . |
setJournalMode
public SQLiteDatabase.OpenParams.Builder setJournalMode (String journalMode)
Sets journal mode to use.
Note: If journal mode is not set, the platform will use a manufactured-specified default which can vary across devices.
Parameters | |
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journalMode |
String : Value is SQLiteDatabase.JOURNAL_MODE_WAL , SQLiteDatabase.JOURNAL_MODE_PERSIST , SQLiteDatabase.JOURNAL_MODE_TRUNCATE , SQLiteDatabase.JOURNAL_MODE_MEMORY , SQLiteDatabase.JOURNAL_MODE_DELETE , or SQLiteDatabase.JOURNAL_MODE_OFF
This value cannot be null . |
Returns | |
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SQLiteDatabase.OpenParams.Builder |
This value cannot be null . |
setLookasideConfig
public SQLiteDatabase.OpenParams.Builder setLookasideConfig (int slotSize, int slotCount)
Configures lookaside memory allocator
SQLite default settings will be used, if this method isn't called.
Use setLookasideConfig(0,0)
to disable lookaside
Note: Provided slotSize/slotCount configuration is just a recommendation. The system may choose different values depending on a device, e.g. lookaside allocations can be disabled on low-RAM devices
Parameters | |
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slotSize |
int : The size in bytes of each lookaside slot.
Value is 0 or greater |
slotCount |
int : The total number of lookaside memory slots per database connection.
Value is 0 or greater |
Returns | |
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SQLiteDatabase.OpenParams.Builder |
setOpenFlags
public SQLiteDatabase.OpenParams.Builder setOpenFlags (int openFlags)
Sets flags to control database access mode
Parameters | |
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openFlags |
int : The new flags to set
Value is either 0 or a combination of SQLiteDatabase.OPEN_READWRITE , SQLiteDatabase.OPEN_READONLY , SQLiteDatabase.CREATE_IF_NECESSARY , SQLiteDatabase.NO_LOCALIZED_COLLATORS , and SQLiteDatabase.ENABLE_WRITE_AHEAD_LOGGING |
Returns | |
---|---|
SQLiteDatabase.OpenParams.Builder |
same builder instance for chaining multiple calls into a single statement
This value cannot be null . |
setSynchronousMode
public SQLiteDatabase.OpenParams.Builder setSynchronousMode (String syncMode)
Sets synchronous mode
Note: If sync mode is not set, the platform will use a manufactured-specified default which can vary across devices.
Parameters | |
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syncMode |
String : Value is SQLiteDatabase.SYNC_MODE_EXTRA , SQLiteDatabase.SYNC_MODE_FULL , SQLiteDatabase.SYNC_MODE_NORMAL , or SQLiteDatabase.SYNC_MODE_OFF
This value cannot be null . |
Returns | |
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SQLiteDatabase.OpenParams.Builder |
This value cannot be null . |