150 lines
4.0 KiB
C++
150 lines
4.0 KiB
C++
/* //device/libs/android_runtime/android_database_SQLiteCursor.cpp
|
|
**
|
|
** Copyright 2006, The Android Open Source Project
|
|
**
|
|
** Licensed under the Apache License, Version 2.0 (the "License");
|
|
** you may not use this file except in compliance with the License.
|
|
** You may obtain a copy of the License at
|
|
**
|
|
** http://www.apache.org/licenses/LICENSE-2.0
|
|
**
|
|
** Unless required by applicable law or agreed to in writing, software
|
|
** distributed under the License is distributed on an "AS IS" BASIS,
|
|
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
** See the License for the specific language governing permissions and
|
|
** limitations under the License.
|
|
*/
|
|
|
|
#undef LOG_TAG
|
|
#define LOG_TAG "Cursor"
|
|
|
|
#include <jni.h>
|
|
#include <JNIHelp.h>
|
|
#include <android_runtime/AndroidRuntime.h>
|
|
|
|
#include <sqlite3.h>
|
|
|
|
#include <utils/Log.h>
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "sqlite3_exception.h"
|
|
|
|
namespace android {
|
|
|
|
|
|
sqlite3_stmt * compile(JNIEnv* env, jobject object,
|
|
sqlite3 * handle, jstring sqlString);
|
|
|
|
static jfieldID gHandleField;
|
|
static jfieldID gStatementField;
|
|
|
|
|
|
#define GET_STATEMENT(env, object) \
|
|
(sqlite3_stmt *)env->GetIntField(object, gStatementField)
|
|
#define GET_HANDLE(env, object) \
|
|
(sqlite3 *)env->GetIntField(object, gHandleField)
|
|
|
|
|
|
static void native_execute(JNIEnv* env, jobject object)
|
|
{
|
|
int err;
|
|
sqlite3 * handle = GET_HANDLE(env, object);
|
|
sqlite3_stmt * statement = GET_STATEMENT(env, object);
|
|
|
|
// Execute the statement
|
|
err = sqlite3_step(statement);
|
|
|
|
// Throw an exception if an error occured
|
|
if (err != SQLITE_DONE) {
|
|
throw_sqlite3_exception_errcode(env, err, sqlite3_errmsg(handle));
|
|
}
|
|
|
|
// Reset the statment so it's ready to use again
|
|
sqlite3_reset(statement);
|
|
}
|
|
|
|
static jlong native_1x1_long(JNIEnv* env, jobject object)
|
|
{
|
|
int err;
|
|
sqlite3 * handle = GET_HANDLE(env, object);
|
|
sqlite3_stmt * statement = GET_STATEMENT(env, object);
|
|
jlong value = -1;
|
|
|
|
// Execute the statement
|
|
err = sqlite3_step(statement);
|
|
|
|
// Handle the result
|
|
if (err == SQLITE_ROW) {
|
|
// No errors, read the data and return it
|
|
value = sqlite3_column_int64(statement, 0);
|
|
} else {
|
|
throw_sqlite3_exception_errcode(env, err, sqlite3_errmsg(handle));
|
|
}
|
|
|
|
// Reset the statment so it's ready to use again
|
|
sqlite3_reset(statement);
|
|
|
|
return value;
|
|
}
|
|
|
|
static jstring native_1x1_string(JNIEnv* env, jobject object)
|
|
{
|
|
int err;
|
|
sqlite3 * handle = GET_HANDLE(env, object);
|
|
sqlite3_stmt * statement = GET_STATEMENT(env, object);
|
|
jstring value = NULL;
|
|
|
|
// Execute the statement
|
|
err = sqlite3_step(statement);
|
|
|
|
// Handle the result
|
|
if (err == SQLITE_ROW) {
|
|
// No errors, read the data and return it
|
|
char const * text = (char const *)sqlite3_column_text(statement, 0);
|
|
value = env->NewStringUTF(text);
|
|
} else {
|
|
throw_sqlite3_exception_errcode(env, err, sqlite3_errmsg(handle));
|
|
}
|
|
|
|
// Reset the statment so it's ready to use again
|
|
sqlite3_reset(statement);
|
|
|
|
return value;
|
|
}
|
|
|
|
|
|
static JNINativeMethod sMethods[] =
|
|
{
|
|
/* name, signature, funcPtr */
|
|
{"native_execute", "()V", (void *)native_execute},
|
|
{"native_1x1_long", "()J", (void *)native_1x1_long},
|
|
{"native_1x1_string", "()Ljava/lang/String;", (void *)native_1x1_string},
|
|
};
|
|
|
|
int register_android_database_SQLiteStatement(JNIEnv * env)
|
|
{
|
|
jclass clazz;
|
|
|
|
clazz = env->FindClass("android/database/sqlite/SQLiteStatement");
|
|
if (clazz == NULL) {
|
|
LOGE("Can't find android/database/sqlite/SQLiteStatement");
|
|
return -1;
|
|
}
|
|
|
|
gHandleField = env->GetFieldID(clazz, "nHandle", "I");
|
|
gStatementField = env->GetFieldID(clazz, "nStatement", "I");
|
|
|
|
if (gHandleField == NULL || gStatementField == NULL) {
|
|
LOGE("Error locating fields");
|
|
return -1;
|
|
}
|
|
|
|
return AndroidRuntime::registerNativeMethods(env,
|
|
"android/database/sqlite/SQLiteStatement", sMethods, NELEM(sMethods));
|
|
}
|
|
|
|
} // namespace android
|