109 lines
3.7 KiB
Java
109 lines
3.7 KiB
Java
/*
|
|
* Copyright (C) 2017 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.
|
|
*/
|
|
package android.arch.persistence.db;
|
|
|
|
import androidx.annotation.Nullable;
|
|
|
|
/**
|
|
* A basic implementation of {@link SupportSQLiteQuery} which receives a query and its args and
|
|
* binds args based on the passed in Object type.
|
|
*/
|
|
public final class SimpleSQLiteQuery implements SupportSQLiteQuery {
|
|
private final String mQuery;
|
|
@Nullable
|
|
private final Object[] mBindArgs;
|
|
|
|
/**
|
|
* Creates an SQL query with the sql string and the bind arguments.
|
|
*
|
|
* @param query The query string, can include bind arguments (.e.g ?).
|
|
* @param bindArgs The bind argument value that will replace the placeholders in the query.
|
|
*/
|
|
public SimpleSQLiteQuery(String query, @Nullable Object[] bindArgs) {
|
|
mQuery = query;
|
|
mBindArgs = bindArgs;
|
|
}
|
|
|
|
/**
|
|
* Creates an SQL query without any bind arguments.
|
|
*
|
|
* @param query The SQL query to execute. Cannot include bind parameters.
|
|
*/
|
|
public SimpleSQLiteQuery(String query) {
|
|
this(query, null);
|
|
}
|
|
|
|
/**
|
|
* Binds the given arguments into the given sqlite statement.
|
|
*
|
|
* @param statement The sqlite statement
|
|
* @param bindArgs The list of bind arguments
|
|
*/
|
|
public static void bind(SupportSQLiteProgram statement, Object[] bindArgs) {
|
|
if (bindArgs == null) {
|
|
return;
|
|
}
|
|
final int limit = bindArgs.length;
|
|
for (int i = 0; i < limit; i++) {
|
|
final Object arg = bindArgs[i];
|
|
bind(statement, i + 1, arg);
|
|
}
|
|
}
|
|
|
|
private static void bind(SupportSQLiteProgram statement, int index, Object arg) {
|
|
// extracted from android.database.sqlite.SQLiteConnection
|
|
if (arg == null) {
|
|
statement.bindNull(index);
|
|
} else if (arg instanceof byte[]) {
|
|
statement.bindBlob(index, (byte[]) arg);
|
|
} else if (arg instanceof Float) {
|
|
statement.bindDouble(index, (Float) arg);
|
|
} else if (arg instanceof Double) {
|
|
statement.bindDouble(index, (Double) arg);
|
|
} else if (arg instanceof Long) {
|
|
statement.bindLong(index, (Long) arg);
|
|
} else if (arg instanceof Integer) {
|
|
statement.bindLong(index, (Integer) arg);
|
|
} else if (arg instanceof Short) {
|
|
statement.bindLong(index, (Short) arg);
|
|
} else if (arg instanceof Byte) {
|
|
statement.bindLong(index, (Byte) arg);
|
|
} else if (arg instanceof String) {
|
|
statement.bindString(index, (String) arg);
|
|
} else if (arg instanceof Boolean) {
|
|
statement.bindLong(index, ((Boolean) arg) ? 1 : 0);
|
|
} else {
|
|
throw new IllegalArgumentException("Cannot bind " + arg + " at index " + index
|
|
+ " Supported types: null, byte[], float, double, long, int, short, byte,"
|
|
+ " string");
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public String getSql() {
|
|
return mQuery;
|
|
}
|
|
|
|
@Override
|
|
public void bindTo(SupportSQLiteProgram statement) {
|
|
bind(statement, mBindArgs);
|
|
}
|
|
|
|
@Override
|
|
public int getArgCount() {
|
|
return mBindArgs == null ? 0 : mBindArgs.length;
|
|
}
|
|
} |