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| public class Provider extends ContentProvider {
private static final String DATABASE_NAME = "basedonnee.db";
private static String DATABASE_PATH = "/data/data/(package)/databases/";
private static String DATABASE_TABLE_TABLE1 = "table1";
private static String DATABASE_TABLE_TABLE2 = "table2";
private static int DATABASE_VERSION = 1;
private static final int CONSTANTS=1;
private static final int CONSTANT_ID=2;
private static final UriMatcher MATCHERtable1;
private static final UriMatcher MATCHERtable2;
private static HashMap<String, String> TABLE1_LIST_PROJECTION;
private static HashMap<String, String> TABLE2_LIST_PROJECTION;
public static final class table1 implements BaseColumns {
public static final Uri CONTENT_URI
=Uri.parse("content://(package)/table1");
public static final String DEFAULT_SORT_ORDER_NOM = "Nom";
public static final String DEFAULT_SORT_ORDER_MATRICULE = "Matricule";
public static final String _ID = "_id";
public static final String MATRICULE = "Matricule";
public static final String NOM = "Nom";
public static final String PRENOM = "Prenom";
}
static {
MATCHERtable1=new UriMatcher(UriMatcher.NO_MATCH);
MATCHERtable1.addURI("(package).Provider", "table1", CONSTANTS);
MATCHERtable1.addURI("(package).Provider", "table1/#", CONSTANT_ID);
TABLE1_LIST_PROJECTION = new HashMap<String, String>();
TABLE1_LIST_PROJECTION.put(Provider.table1._ID, Provider.table1._ID);
TABLE1_LIST_PROJECTION.put(Provider.table1.MARICULE, Provider.table1.MATRICULE);
TABLE1_LIST_PROJECTION.put(Provider.table1.NOM, Provider.table1.NOM);
TABLE1_LIST_PROJECTION.put(Provider.table1.PRENOM, Provider.table1.PRENOM);
}
public static final class table12 implements BaseColumns {
public static final Uri CONTENT_URI
=Uri.parse("content://(package)/table2");
public static final String DEFAULT_SORT_ORDER_MATRICULE = "Matricule";
public static final String _ID = "_id";
public static final String MARICULE = "Matricule";
public static final String LOISIR = "Loisir";
public static final String ACTIVITE = "Activite";
}
static {
MATCHERtable2=new UriMatcher(UriMatcher.NO_MATCH);
MATCHERtable2.addURI("(package).Provider", "table2", CONSTANTS);
MATCHERtable2.addURI("(package).Provider", "table2/#", CONSTANT_ID);
TABLE2_LIST_PROJECTION = new HashMap<String, String>();
TABLE2_LIST_PROJECTION.put(Provider.table2._ID, Provider.table2._ID);
TABLE2_LIST_PROJECTION.put(Provider.table2.MARICULE, Provider.table2.MARICULE);
TABLE2_LIST_PROJECTION.put(Provider.table2.LOISIR, Provider.table2.LOISIR);
TABLE2_LIST_PROJECTION.put(Provider.table2.ACTIVITE, Provider.table2.ACTIVITE);
}
public String getDbName() {
return(DATABASE_NAME);
}
public int getDbVersion() {
return(DATABASE_VERSION);
}
private class DatabaseHelper extends SQLiteOpenHelper {
public DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
//
}
}
private SQLiteDatabase db;
@Override
public boolean onCreate() {
db=(new DatabaseHelper(getContext())).getReadableDatabase();
return (db == null) ? false : true;
}
@Override
public Cursor query(Uri url, String[] projection, String selection,
String[] selectionArgs, String sort) {
SQLiteQueryBuilder qb=new SQLiteQueryBuilder();
qb.setTables(getTableName(url));
if (isCollectionUri(url)) {
qb.setProjectionMap(getDefaultProjection(url));
}
else {
qb.appendWhere(getIdColumnName()+"="+url.getPathSegments().get(1));
}
String orderBy;
if (TextUtils.isEmpty(sort)) {
orderBy=getDefaultSortOrder();
} else {
orderBy=sort;
}
Cursor c=qb.query(db, projection, selection, selectionArgs, null, null, orderBy);
c.setNotificationUri(getContext().getContentResolver(), url);
return c;
}
@Override
public String getType(Uri url) {
if (isCollectionUri(url)) {
return(getCollectionType());
}
return(getSingleType());
}
private boolean isCollectionUri(Uri url) {
if (url.toString() == Provider.table1.CONTENT_URI.toString()) {
return(MATCHERtable1.match(url)==CONSTANTS);
}
else {
if (url.toString() == Provider.table2.CONTENT_URI.toString())
return(MATCHERtable12.match(url)==CONSTANTS);
else return false;
}
}
private HashMap<String, String> getDefaultProjection(Uri url) {
if (url.toString() == Provider.table1.CONTENT_URI.toString()) {
return(TABLE1_LIST_PROJECTION);
}
else {
if (url.toString() == Provider.table2.CONTENT_URI.toString())
return(TABLE2_LIST_PROJECTION);
else return(null);
}
}
private String getTableName(Uri url) {
if (url.toString() == Provider.table1.CONTENT_URI.toString()) {
return(DATABASE_TABLE_TABLE1);
}
else {
if (url.toString() == Provider.table2.CONTENT_URI.toString())
return(DATABASE_TABLE_TABLE2);
else return("");
}
}
} |
ContentProvider avec plusieurs tables
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