java.lang.Object
- io.roastedroot.sqlite4j.core.DB
- - io.roastedroot.sqlite4j.core.WasmDB

All Implemented Interfaces:: Codes, WasmDBImports

public class WasmDB
extends DB
implements WasmDBImports

Nested Class Summary
- Nested classes/interfaces inherited from class io.roastedroot.sqlite4j.core.DB
  DB.ProgressObserver

Field Summary

Fields
Modifier and Type Field Description

static int PTR_SIZE
- Fields inherited from class io.roastedroot.sqlite4j.core.DB
  commitListeners, updateListeners
- Fields inherited from interface io.roastedroot.sqlite4j.core.Codes
  SQLITE_ABORT, SQLITE_AUTH, SQLITE_BLOB, SQLITE_BUSY, SQLITE_CANTOPEN, SQLITE_CONSTRAINT, SQLITE_CORRUPT, SQLITE_DONE, SQLITE_EMPTY, SQLITE_ERROR, SQLITE_FLOAT, SQLITE_FULL, SQLITE_INTEGER, SQLITE_INTERNAL, SQLITE_INTERRUPT, SQLITE_IOERR, SQLITE_LOCKED, SQLITE_MISMATCH, SQLITE_MISUSE, SQLITE_NOLFS, SQLITE_NOMEM, SQLITE_NOTFOUND, SQLITE_NULL, SQLITE_OK, SQLITE_PERM, SQLITE_PROTOCOL, SQLITE_READONLY, SQLITE_ROW, SQLITE_SCHEMA, SQLITE_TEXT, SQLITE_TOOBIG

Constructor Summary

Constructors
Constructor Description

WasmDB(FileSystem fs, String url, String fileName, SQLiteConfig config, boolean isMemory)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`_close()`	Closes the SQLite interface to a database.
`int`	`_exec(String sql)`	Complies, evaluates, executes and commits an SQL statement.
`protected void`	`_open(String filename, int openFlags)`	Creates an SQLite interface to a database with the provided open flags.
`int`	`backup(String dbName, String destFileName, DB.ProgressObserver observer)`
`int`	`backup(String dbName, String destFileName, DB.ProgressObserver observer, int sleepTimeMillis, int nTimeoutLimit, int pagesPerStep)`
`void`	`busy_handler(BusyHandler busyHandler)`	Sets a busy handler that sleeps for a specified amount of time when a table is locked.
`void`	`busy_timeout(int ms)`	Sets a busy handler that sleeps for a specified amount of time when a table is locked.
`long`	`changes()`
`int`	`clear_bindings(long stmtPtrPtr)`	Reset all bindings on a prepared statement (reset all host parameters to NULL).
`void`	`clear_progress_handler()`
`byte[]`	`column_blob(long stmtPtrPtr, int col)`
`int`	`column_count(long stmtPtrPtr)`
`String`	`column_decltype(long stmtPtrPtr, int col)`
`double`	`column_double(long stmtPtrPtr, int col)`
`int`	`column_int(long stmtPtrPtr, int col)`
`long`	`column_long(long stmtPtrPtr, int col)`
`String`	`column_name(long stmtPtrPtr, int col)`
`String`	`column_table_name(long stmtPtrPtr, int col)`
`String`	`column_text(long stmtPtrPtr, int col)`
`int`	`column_type(long stmtPtrPtr, int col)`
`int`	`create_collation(String name, Collation c)`	Create a user defined collation with given collation name and the collation object.
`int`	`create_function(String name, Function f, int nArgs, int flags)`	Create a user defined function with given function name and the function object.
`void`	`deserialize(String schema, byte[] buff)`
`int`	`destroy_collation(String name)`	Create a user defined collation with given collation name and the collation object.
`int`	`destroy_function(String name)`	De-registers a user defined function
`int`	`enable_load_extension(boolean enable)`	Enables or disables loading of SQLite extensions.
`protected int`	`finalize(long stmtPtrPtr)`	Destroys a prepared statement.
`void`	`interrupt()`	Aborts any pending operation and returns at its earliest opportunity.
`String`	`libversion()`	Returns the value for SQLITE_VERSION, SQLITE_VERSION_NUMBER, and SQLITE_SOURCE_ID C preprocessor macros that are associated with the library.
`int`	`limit(int id, int value)`
`protected SafeStmtPtr`	`prepare(String sql)`	Complies an SQL statement.
`void`	`register_progress_handler(int vmCalls, ProgressHandler progressHandler)`	Progress handler
`int`	`reset(long stmtPtrPtr)`	Sets a prepared statement object back to its initial state, ready to be re-executed.
`int`	`restore(String dbName, String sourceFileName, DB.ProgressObserver observer)`
`int`	`restore(String dbName, String sourceFileName, DB.ProgressObserver observer, int sleepTimeMillis, int nTimeoutLimit, int pagesPerStep)`
`void`	`result_blob(long context, byte[] v)`	Sets the result of an SQL function as blob data type with the pointer to the SQLite database context and the the result value of byte array.
`void`	`result_double(long context, double val)`	Sets the result of an SQL function as double data type with the pointer to the SQLite database context and the the result value of double.
`void`	`result_error(long context, String err)`	Sets the result of an SQL function as an error with the pointer to the SQLite database context and the the error of String.
`void`	`result_int(long context, int val)`	Sets the result of an SQL function as int data type with the pointer to the SQLite database context and the the result value of int.
`void`	`result_long(long context, long val)`	Sets the result of an SQL function as long data type with the pointer to the SQLite database context and the the result value of long.
`void`	`result_null(long context)`	Sets the result of an SQL function as NULL with the pointer to the SQLite database context.
`void`	`result_text(long context, String val)`	Sets the result of an SQL function as text data type with the pointer to the SQLite database context and the the result value of String.
`byte[]`	`serialize(String schema)`
`int`	`shared_cache(boolean enable)`	Enables or disables the sharing of the database cache and schema data structures between connections to the same database.
`int`	`step(long stmtPtrPtr)`	Evaluates a statement.
`long`	`total_changes()`
`byte[]`	`value_blob(Function f, int arg)`
`double`	`value_double(Function f, int arg)`
`int`	`value_int(Function f, int arg)`	Accesses the parameter values on the function or aggregate in int data type with the function object and the parameter value.
`long`	`value_long(Function f, int arg)`
`String`	`value_text(Function f, int arg)`
`int`	`value_type(Function f, int arg)`
`static String`	`version()`
`int`	`xBusy(int userData, int nbPrevInvok)`
`int`	`xCommit(int userData)`
`int`	`xCompare(int ctx, int len1, int str1Ptr, int len2, int str2Ptr)`
`void`	`xDestroy(int funIdx)`
`void`	`xDestroyCollation(int funIdx)`
`void`	`xFinal(int ctx)`
`void`	`xFunc(int ctx, int argN, int value)`
`void`	`xInverse(int ctx, int argN, int value)`
`int`	`xProgress(int userData)`
`void`	`xRollback(int userData)`
`void`	`xStep(int ctx, int argN, int value)`
`void`	`xUpdate(int userData, int tpe, int dbNamePtr, int tablePtr, long rowId)`
`void`	`xValue(int ctx)`

Methods inherited from class io.roastedroot.sqlite4j.core.DB
addCommitListener, addUpdateListener, close, column_names, exec, execute, executeUpdate, finalize, getConfig, getUrl, isClosed, newSQLException, open, prepare, removeCommitListener, removeUpdateListener, throwex

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.roastedroot.sqlite4j.core.wasm.WasmDBImports
toHostFunctions

- Field Detail
  - PTR_SIZE
```
public static final int PTR_SIZE
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - WasmDB
```
public WasmDB(FileSystem fs,
              String url,
              String fileName,
              SQLiteConfig config,
              boolean isMemory)
       throws SQLException
```
    Throws:
    
    SQLException
- Method Detail
  - xProgress
```
public int xProgress(int userData)
```
    Specified by:
    
    xProgress in interface WasmDBImports
  - xBusy
```
public int xBusy(int userData,
                 int nbPrevInvok)
```
    Specified by:
    
    xBusy in interface WasmDBImports
  - xDestroy
```
public void xDestroy(int funIdx)
```
    Specified by:
    
    xDestroy in interface WasmDBImports
  - xFinal
```
public void xFinal(int ctx)
```
    Specified by:
    
    xFinal in interface WasmDBImports
  - xValue
```
public void xValue(int ctx)
```
    Specified by:
    
    xValue in interface WasmDBImports
  - xFunc
```
public void xFunc(int ctx,
                  int argN,
                  int value)
```
    Specified by:
    
    xFunc in interface WasmDBImports
  - xStep
```
public void xStep(int ctx,
                  int argN,
                  int value)
```
    Specified by:
    
    xStep in interface WasmDBImports
  - xInverse
```
public void xInverse(int ctx,
                     int argN,
                     int value)
```
    Specified by:
    
    xInverse in interface WasmDBImports
  - xCompare
```
public int xCompare(int ctx,
                    int len1,
                    int str1Ptr,
                    int len2,
                    int str2Ptr)
```
    Specified by:
    
    xCompare in interface WasmDBImports
  - xDestroyCollation
```
public void xDestroyCollation(int funIdx)
```
    Specified by:
    
    xDestroyCollation in interface WasmDBImports
  - xUpdate
```
public void xUpdate(int userData,
                    int tpe,
                    int dbNamePtr,
                    int tablePtr,
                    long rowId)
```
    Specified by:
    
    xUpdate in interface WasmDBImports
  - xCommit
```
public int xCommit(int userData)
```
    Specified by:
    
    xCommit in interface WasmDBImports
  - xRollback
```
public void xRollback(int userData)
```
    Specified by:
    
    xRollback in interface WasmDBImports
  - _open
```
protected void _open(String filename,
                     int openFlags)
              throws SQLException
```
    Description copied from class: DB
    
    Creates an SQLite interface to a database with the provided open flags.
    
    Specified by:
    
    _open in class DB
    
    Parameters:
    
    filename - The database to open.
    
    openFlags - File opening configurations (https://www.sqlite.org/c3ref/c_open_autoproxy.html)
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/open.html
  - prepare
```
protected SafeStmtPtr prepare(String sql)
                       throws SQLException
```
    Description copied from class: DB
    
    Complies an SQL statement.
    
    Specified by:
    
    prepare in class DB
    
    Parameters:
    
    sql - An SQL statement.
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/prepare.html
  - finalize
```
protected int finalize(long stmtPtrPtr)
                throws SQLException
```
    Description copied from class: DB
    
    Destroys a prepared statement.
    
    Specified by:
    
    finalize in class DB
    
    Parameters:
    
    stmtPtrPtr - Pointer to the statement pointer.
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/finalize.html
  - step
```
public int step(long stmtPtrPtr)
         throws SQLException
```
    Description copied from class: DB
    
    Evaluates a statement.
    
    Specified by:
    
    step in class DB
    
    Parameters:
    
    stmtPtrPtr - Pointer to the statement.
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/step.html
  - _exec
```
public int _exec(String sql)
          throws SQLException
```
    Description copied from class: DB
    
    Complies, evaluates, executes and commits an SQL statement.
    
    Specified by:
    
    _exec in class DB
    
    Parameters:
    
    sql - An SQL statement.
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/exec.html
  - changes
```
public long changes()
             throws SQLException
```
    Specified by:
    
    changes in class DB
    
    Returns:
    
    Number of rows that were changed, inserted or deleted by the last SQL statement
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/changes.html
  - interrupt
```
public void interrupt()
               throws SQLException
```
    Description copied from class: DB
    
    Aborts any pending operation and returns at its earliest opportunity.
    
    Specified by:
    
    interrupt in class DB
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/interrupt.html
  - busy_timeout
```
public void busy_timeout(int ms)
                  throws SQLException
```
    Description copied from class: DB
    
    Sets a busy handler that sleeps for a specified amount of time when a table is locked.
    
    Specified by:
    
    busy_timeout in class DB
    
    Parameters:
    
    ms - Time to sleep in milliseconds.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/busy_timeout.html
  - busy_handler
```
public void busy_handler(BusyHandler busyHandler)
                  throws SQLException
```
    Description copied from class: DB
    
    Sets a busy handler that sleeps for a specified amount of time when a table is locked.
    
    Specified by:
    
    busy_handler in class DB
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/busy_timeout.html
  - libversion
```
public String libversion()
                  throws SQLException
```
    Description copied from class: DB
    
    Returns the value for SQLITE_VERSION, SQLITE_VERSION_NUMBER, and SQLITE_SOURCE_ID C preprocessor macros that are associated with the library.
    
    Specified by:
    
    libversion in class DB
    
    Returns:
    
    Compile-time SQLite version information.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/libversion.html, https://www.sqlite.org/c3ref/c_source_id.html
  - total_changes
```
public long total_changes()
                   throws SQLException
```
    Specified by:
    
    total_changes in class DB
    
    Returns:
    
    Number of row changes caused by INSERT, UPDATE or DELETE statements since the database connection was opened.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/total_changes.html
  - shared_cache
```
public int shared_cache(boolean enable)
                 throws SQLException
```
    Description copied from class: DB
    
    Enables or disables the sharing of the database cache and schema data structures between connections to the same database.
    
    Specified by:
    
    shared_cache in class DB
    
    Parameters:
    
    enable - True to enable; false otherwise.
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/enable_shared_cache.html, SQLiteErrorCode
  - enable_load_extension
```
public int enable_load_extension(boolean enable)
                          throws SQLException
```
    Description copied from class: DB
    
    Enables or disables loading of SQLite extensions.
    
    Specified by:
    
    enable_load_extension in class DB
    
    Parameters:
    
    enable - True to enable; false otherwise.
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/load_extension.html
  - _close
```
protected void _close()
               throws SQLException
```
    Description copied from class: DB
    
    Closes the SQLite interface to a database.
    
    Specified by:
    
    _close in class DB
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/close.html
  - reset
```
public int reset(long stmtPtrPtr)
          throws SQLException
```
    Description copied from class: DB
    
    Sets a prepared statement object back to its initial state, ready to be re-executed.
    
    Specified by:
    
    reset in class DB
    
    Parameters:
    
    stmtPtrPtr - Pointer to the statement.
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/reset.html
  - clear_bindings
```
public int clear_bindings(long stmtPtrPtr)
                   throws SQLException
```
    Description copied from class: DB
    
    Reset all bindings on a prepared statement (reset all host parameters to NULL).
    
    Specified by:
    
    clear_bindings in class DB
    
    Parameters:
    
    stmtPtrPtr - Pointer to the statement.
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/clear_bindings.html
  - column_count
```
public int column_count(long stmtPtrPtr)
                 throws SQLException
```
    Specified by:
    
    column_count in class DB
    
    Parameters:
    
    stmtPtrPtr - Pointer to the statement.
    
    Returns:
    
    Number of columns in the result set returned by the prepared statement.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/column_count.html
  - column_type
```
public int column_type(long stmtPtrPtr,
                       int col)
                throws SQLException
```
    Specified by:
    
    column_type in class DB
    
    Parameters:
    
    stmtPtrPtr - Pointer to the statement.
    
    col - Number of column.
    
    Returns:
    
    Datatype code for the initial data type of the result column.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/column_blob.html
  - column_decltype
```
public String column_decltype(long stmtPtrPtr,
                              int col)
                       throws SQLException
```
    Specified by:
    
    column_decltype in class DB
    
    Parameters:
    
    stmtPtrPtr - Pointer to the statement.
    
    col - Number of column.
    
    Returns:
    
    Declared type of the table column for prepared statement.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/column_decltype.html
  - column_table_name
```
public String column_table_name(long stmtPtrPtr,
                                int col)
                         throws SQLException
```
    Specified by:
    
    column_table_name in class DB
    
    Parameters:
    
    stmtPtrPtr - Pointer to the statement.
    
    col - Number of column.
    
    Returns:
    
    Original text of column name which is the declared in the CREATE TABLE statement.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/column_database_name.html
  - column_name
```
public String column_name(long stmtPtrPtr,
                          int col)
                   throws SQLException
```
    Specified by:
    
    column_name in class DB
    
    Parameters:
    
    stmtPtrPtr - Pointer to the statement.
    
    col - The number of column.
    
    Returns:
    
    Name assigned to a particular column in the result set of a SELECT statement.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/column_name.html
  - column_text
```
public String column_text(long stmtPtrPtr,
                          int col)
                   throws SQLException
```
    Specified by:
    
    column_text in class DB
    
    Parameters:
    
    stmtPtrPtr - Pointer to the statement.
    
    col - Number of column.
    
    Returns:
    
    Value of the column as text data type in the result set of a SELECT statement.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/column_blob.html
  - column_blob
```
public byte[] column_blob(long stmtPtrPtr,
                          int col)
                   throws SQLException
```
    Specified by:
    
    column_blob in class DB
    
    Parameters:
    
    stmtPtrPtr - Pointer to the statement.
    
    col - Number of column.
    
    Returns:
    
    BLOB value of the column in the result set of a SELECT statement
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/column_blob.html
  - column_double
```
public double column_double(long stmtPtrPtr,
                            int col)
                     throws SQLException
```
    Specified by:
    
    column_double in class DB
    
    Parameters:
    
    stmtPtrPtr - Pointer to the statement.
    
    col - Number of column.
    
    Returns:
    
    DOUBLE value of the column in the result set of a SELECT statement
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/column_blob.html
  - column_long
```
public long column_long(long stmtPtrPtr,
                        int col)
                 throws SQLException
```
    Specified by:
    
    column_long in class DB
    
    Parameters:
    
    stmtPtrPtr - Pointer to the statement.
    
    col - Number of column.
    
    Returns:
    
    LONG value of the column in the result set of a SELECT statement.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/column_blob.html
  - column_int
```
public int column_int(long stmtPtrPtr,
                      int col)
               throws SQLException
```
    Specified by:
    
    column_int in class DB
    
    Parameters:
    
    stmtPtrPtr - Pointer to the statement.
    
    col - Number of column.
    
    Returns:
    
    INT value of column in the result set of a SELECT statement.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/column_blob.html
  - result_null
```
public void result_null(long context)
                 throws SQLException
```
    Description copied from class: DB
    
    Sets the result of an SQL function as NULL with the pointer to the SQLite database context.
    
    Specified by:
    
    result_null in class DB
    
    Parameters:
    
    context - Pointer to the SQLite database context.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/result_blob.html
  - result_text
```
public void result_text(long context,
                        String val)
                 throws SQLException
```
    Description copied from class: DB
    
    Sets the result of an SQL function as text data type with the pointer to the SQLite database context and the the result value of String.
    
    Specified by:
    
    result_text in class DB
    
    Parameters:
    
    context - Pointer to the SQLite database context.
    
    val - Result value of an SQL function.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/result_blob.html
  - result_blob
```
public void result_blob(long context,
                        byte[] v)
                 throws SQLException
```
    Description copied from class: DB
    
    Sets the result of an SQL function as blob data type with the pointer to the SQLite database context and the the result value of byte array.
    
    Specified by:
    
    result_blob in class DB
    
    Parameters:
    
    context - Pointer to the SQLite database context.
    
    v - Result value of an SQL function.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/result_blob.html
  - result_double
```
public void result_double(long context,
                          double val)
                   throws SQLException
```
    Description copied from class: DB
    
    Sets the result of an SQL function as double data type with the pointer to the SQLite database context and the the result value of double.
    
    Specified by:
    
    result_double in class DB
    
    Parameters:
    
    context - Pointer to the SQLite database context.
    
    val - Result value of an SQL function.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/result_blob.html
  - result_long
```
public void result_long(long context,
                        long val)
                 throws SQLException
```
    Description copied from class: DB
    
    Sets the result of an SQL function as long data type with the pointer to the SQLite database context and the the result value of long.
    
    Specified by:
    
    result_long in class DB
    
    Parameters:
    
    context - Pointer to the SQLite database context.
    
    val - Result value of an SQL function.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/result_blob.html
  - result_int
```
public void result_int(long context,
                       int val)
                throws SQLException
```
    Description copied from class: DB
    
    Sets the result of an SQL function as int data type with the pointer to the SQLite database context and the the result value of int.
    
    Specified by:
    
    result_int in class DB
    
    Parameters:
    
    context - Pointer to the SQLite database context.
    
    val - Result value of an SQL function.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/result_blob.html
  - result_error
```
public void result_error(long context,
                         String err)
                  throws SQLException
```
    Description copied from class: DB
    
    Sets the result of an SQL function as an error with the pointer to the SQLite database context and the the error of String.
    
    Specified by:
    
    result_error in class DB
    
    Parameters:
    
    context - Pointer to the SQLite database context.
    
    err - Error result of an SQL function.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/result_blob.html
  - value_text
```
public String value_text(Function f,
                         int arg)
                  throws SQLException
```
    Specified by:
    
    value_text in class DB
    
    Parameters:
    
    f - SQLite function object.
    
    arg - Pointer to the parameter of the SQLite function or aggregate.
    
    Returns:
    
    Parameter value of the given SQLite function or aggregate in text data type.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/value_blob.html
  - value_blob
```
public byte[] value_blob(Function f,
                         int arg)
                  throws SQLException
```
    Specified by:
    
    value_blob in class DB
    
    Parameters:
    
    f - SQLite function object.
    
    arg - Pointer to the parameter of the SQLite function or aggregate.
    
    Returns:
    
    Parameter value of the given SQLite function or aggregate in blob data type.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/value_blob.html
  - value_double
```
public double value_double(Function f,
                           int arg)
                    throws SQLException
```
    Specified by:
    
    value_double in class DB
    
    Parameters:
    
    f - SQLite function object.
    
    arg - Pointer to the parameter of the SQLite function or aggregate.
    
    Returns:
    
    Parameter value of the given SQLite function or aggregate in double data type
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/value_blob.html
  - value_long
```
public long value_long(Function f,
                       int arg)
                throws SQLException
```
    Specified by:
    
    value_long in class DB
    
    Parameters:
    
    f - SQLite function object.
    
    arg - Pointer to the parameter of the SQLite function or aggregate.
    
    Returns:
    
    Parameter value of the given SQLite function or aggregate in long data type.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/value_blob.html
  - value_int
```
public int value_int(Function f,
                     int arg)
              throws SQLException
```
    Description copied from class: DB
    
    Accesses the parameter values on the function or aggregate in int data type with the function object and the parameter value.
    
    Specified by:
    
    value_int in class DB
    
    Parameters:
    
    f - SQLite function object.
    
    arg - Pointer to the parameter of the SQLite function or aggregate.
    
    Returns:
    
    Parameter value of the given SQLite function or aggregate.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/value_blob.html
  - value_type
```
public int value_type(Function f,
                      int arg)
               throws SQLException
```
    Specified by:
    
    value_type in class DB
    
    Parameters:
    
    f - SQLite function object.
    
    arg - Pointer to the parameter of the SQLite function or aggregate.
    
    Returns:
    
    Parameter datatype of the function or aggregate in int data type.
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/value_blob.html
  - create_function
```
public int create_function(String name,
                           Function f,
                           int nArgs,
                           int flags)
                    throws SQLException
```
    Description copied from class: DB
    
    Create a user defined function with given function name and the function object.
    
    Specified by:
    
    create_function in class DB
    
    Parameters:
    
    name - The function name to be created.
    
    f - SQLite function object.
    
    flags - Extra flags to use when creating the function, such as Function.FLAG_DETERMINISTIC
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/create_function.html
  - destroy_function
```
public int destroy_function(String name)
                     throws SQLException
```
    Description copied from class: DB
    
    De-registers a user defined function
    
    Specified by:
    
    destroy_function in class DB
    
    Parameters:
    
    name - Name of the function to de-registered.
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
  - create_collation
```
public int create_collation(String name,
                            Collation c)
                     throws SQLException
```
    Description copied from class: DB
    
    Create a user defined collation with given collation name and the collation object.
    
    Specified by:
    
    create_collation in class DB
    
    Parameters:
    
    name - The collation name to be created.
    
    c - SQLite collation object.
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/create_collation.html
  - destroy_collation
```
public int destroy_collation(String name)
                      throws SQLException
```
    Description copied from class: DB
    
    Create a user defined collation with given collation name and the collation object.
    
    Specified by:
    
    destroy_collation in class DB
    
    Parameters:
    
    name - The collation name to be created.
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
  - backup
```
public int backup(String dbName,
                  String destFileName,
                  DB.ProgressObserver observer)
           throws SQLException
```
    Specified by:
    
    backup in class DB
    
    Parameters:
    
    dbName - Database name to be backed up.
    
    destFileName - Target backup file name.
    
    observer - ProgressObserver object.
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
  - backup
```
public int backup(String dbName,
                  String destFileName,
                  DB.ProgressObserver observer,
                  int sleepTimeMillis,
                  int nTimeoutLimit,
                  int pagesPerStep)
           throws SQLException
```
    Specified by:
    
    backup in class DB
    
    Parameters:
    
    dbName - Database name to be backed up.
    
    destFileName - Target backup file name.
    
    observer - ProgressObserver object.
    
    sleepTimeMillis - time to wait during a backup/restore operation if sqlite3_backup_step returns SQLITE_BUSY before continuing
    
    nTimeoutLimit - the number of times sqlite3_backup_step can return SQLITE_BUSY before failing
    
    pagesPerStep - the number of pages to copy in each sqlite3_backup_step. If this is negative, the entire DB is copied at once.
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
  - restore
```
public int restore(String dbName,
                   String sourceFileName,
                   DB.ProgressObserver observer)
            throws SQLException
```
    Specified by:
    
    restore in class DB
    
    Parameters:
    
    dbName - Database name for restoring data.
    
    sourceFileName - Source file name.
    
    observer - ProgressObserver object.
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
  - restore
```
public int restore(String dbName,
                   String sourceFileName,
                   DB.ProgressObserver observer,
                   int sleepTimeMillis,
                   int nTimeoutLimit,
                   int pagesPerStep)
            throws SQLException
```
    Specified by:
    
    restore in class DB
    
    Parameters:
    
    dbName - the name of the db to restore
    
    sourceFileName - the filename of the source db to restore
    
    observer - ProgressObserver object.
    
    sleepTimeMillis - time to wait during a backup/restore operation if sqlite3_backup_step returns SQLITE_BUSY before continuing
    
    nTimeoutLimit - the number of times sqlite3_backup_step can return SQLITE_BUSY before failing
    
    pagesPerStep - the number of pages to copy in each sqlite3_backup_step. If this is negative, the entire DB is copied at once.
    
    Returns:
    
    Result Codes
    
    Throws:
    
    SQLException
  - limit
```
public int limit(int id,
                 int value)
          throws SQLException
```
    Specified by:
    
    limit in class DB
    
    Parameters:
    
    id - The id of the limit.
    
    value - The new value of the limit.
    
    Returns:
    
    The prior value of the limit
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/limit.html
  - register_progress_handler
```
public void register_progress_handler(int vmCalls,
                                      ProgressHandler progressHandler)
                               throws SQLException
```
    Description copied from class: DB
    
    Progress handler
    
    Specified by:
    
    register_progress_handler in class DB
    
    Throws:
    
    SQLException
  - clear_progress_handler
```
public void clear_progress_handler()
                            throws SQLException
```
    Specified by:
    
    clear_progress_handler in class DB
    
    Throws:
    
    SQLException
  - serialize
```
public byte[] serialize(String schema)
                 throws SQLException
```
    Specified by:
    
    serialize in class DB
    
    Throws:
    
    SQLException
  - deserialize
```
public void deserialize(String schema,
                        byte[] buff)
                 throws SQLException
```
    Specified by:
    
    deserialize in class DB
    
    Throws:
    
    SQLException
  - version
```
public static String version()
```

Class WasmDB

Nested Class Summary

Nested classes/interfaces inherited from class io.roastedroot.sqlite4j.core.DB

Field Summary

Fields inherited from class io.roastedroot.sqlite4j.core.DB

Fields inherited from interface io.roastedroot.sqlite4j.core.Codes

Constructor Summary

Method Summary

Methods inherited from class io.roastedroot.sqlite4j.core.DB

Methods inherited from class java.lang.Object

Methods inherited from interface io.roastedroot.sqlite4j.core.wasm.WasmDBImports

Field Detail

PTR_SIZE

Constructor Detail

WasmDB

Method Detail

xProgress

xBusy

xDestroy

xFinal

xValue

xFunc

xStep

xInverse

xCompare

xDestroyCollation

xUpdate

xCommit

xRollback

_open

prepare

finalize

step

_exec

changes

interrupt

busy_timeout

busy_handler

libversion

total_changes

shared_cache

enable_load_extension

_close

reset

clear_bindings

column_count

column_type

column_decltype

column_table_name

column_name

column_text

column_blob

column_double

column_long

column_int

result_null

result_text

result_blob

result_double

result_long

result_int

result_error

value_text

value_blob

value_double

value_long

value_int

value_type

create_function

destroy_function

create_collation

destroy_collation

backup

backup

restore

restore

limit

register_progress_handler

clear_progress_handler

serialize