gwenn / sqlite-jna

Java wrapper and Jdbc driver for SQLite using JNA or Bridj or JNR or JNI or JavaCPP.

JDBC driver for SQLite using JNA instead of JNI to make it easy to deploy (if you already have SQLite installed). There are two layers:

• a small one matching the SQLite API (package org.sqlite)
• a bloated one matching the JDBC API (package org.sqlite.driver)

INSTALL

1. https://github.com/twall/jna/blob/master/www/GettingStarted.md
2. http://www.sqlite.org/download.html
3. Ensure JVM and SQLite match (x86 vs x86-64)

On Windows, to build your own x86-64 version (with cygwin&mingw):

x86_64-w64-mingw32-gcc.exe -Wl,--kill-at -O -shared -o sqlite3.dll -DSQLITE_ENABLE_COLUMN_METADATA -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_STAT3 -DSQLITE_THREADSAFE=1 -DSQLITE_DEFAULT_FOREIGN_KEYS=1 sqlite3.c
+ Stripping...

TODO

1. Fix as many unimplemented methods as possible.
2. Benchmark

LINKS

• https://github.com/sqlite/sqlite/tree/master/ext/jni (JNI, no JDBC)
• https://github.com/xerial/sqlite-jdbc (https://bitbucket.org/xerial/sqlite-jdbc) (JNI)
• http://www.ch-werner.de/javasqlite/ (https://www.sqlite.org/java/) (JNI)
• https://code.google.com/p/sqlite4java/ (JNI, no JDBC)
• https://github.com/lyubo/jdbc-lite (JNA)
• https://code.google.com/p/nativelibs4java/issues/detail?id=47 (Bridj)
• https://github.com/tstack/SqliteJdbcNG (Bridj)
• https://github.com/twall/jna
• https://github.com/bytedeco/javacpp
• https://github.com/jnr/jnr-ffi

LICENSE

Public domain

sqlite-jna's Issues

Integrate tests from Java EE TCK

https://github.com/eclipse-ee4j/jakartaee-tck/tree/master/src/com/sun/ts/tests/jdbc/ee

BusyHandler is not a supported argument type

I am using sqlite3.dll 64bit version 3.31.1 and facing an error when creating a connection:
#Code
public class Test extends ScalarCallback {

protected void func(SQLite.SQLite3Context pCtx, SQLite.SQLite3Values args) {
    int x=args.getInt(0);
    pCtx.setResultInt(x+1);
}

public static void main(String[] args) throws Exception {
    int flags = OpenFlags.SQLITE_OPEN_READWRITE | OpenFlags.SQLITE_OPEN_CREATE;
    Conn c = Conn.open("test.sqlite",flags,null);
    c.createScalarFunction("add_one",1, FunctionFlags.SQLITE_UTF8,new Test());
    String sql="SELECT add_one(1)";
    Stmt s=c.prepare(sql,false);
    if (s.step(1)) {
        System.out.println(s.getColumnInt(0));
    }
}

}

#Error
Caused by: java.lang.IllegalArgumentException: class org.sqlite.BusyHandler is not a supported argument type (in method sqlite3_busy_handler in class org.sqlite.SQLite)
at com.sun.jna.Native.register(Native.java:1727)
at com.sun.jna.Native.register(Native.java:1370)
at org.sqlite.SQLite.(SQLite.java:31)
... 2 more

Please help me resolve it
Many thanks

SQLite 3.35 impacts

• https://sqlite.org/lang_altertable.html#altertabdropcol
  org.sqlite.driver.DbMeta#supportsAlterTableWithDropColumn
• https://sqlite.org/lang_returning.html
  org.sqlite.driver.Conn#prepareStatement(java.lang.String, int)
  org.sqlite.driver.Conn#prepareStatement(java.lang.String, int[]) // not supported ?
  org.sqlite.driver.Conn#prepareStatement(java.lang.String, java.lang.String[])
  org.sqlite.driver.Stmt#getGeneratedKeys
  org.sqlite.driver.Stmt#executeUpdate(java.lang.String, int)
  org.sqlite.driver.Stmt#executeUpdate(java.lang.String, int[]) // not supported ?
  org.sqlite.driver.Stmt#executeUpdate(java.lang.String, java.lang.String[])
  org.sqlite.driver.Stmt#execute(java.lang.String, int)
  org.sqlite.driver.Stmt#execute(java.lang.String, int[]) // not supported ?
  org.sqlite.driver.Stmt#execute(java.lang.String, java.lang.String[])

Test is failing

Failed tests:
SqliteDatabaseMetadataTest.testGetColumns:346 arrays first differed at element [8]; expected:<...aster|rootpage|4|INT[EGER]|10|null|10|10|1|nul...> but was:<...aster|rootpage|4|INT[]|10|null|10|10|1|nul...>