QueryInterceptorProgram.java
/*
* Copyright 2020 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 androidx.room;
import androidx.sqlite.db.SupportSQLiteProgram;
import java.util.ArrayList;
import java.util.List;
/**
* A program implementing an {@link SupportSQLiteProgram} API to record bind arguments.
*/
final class QueryInterceptorProgram implements SupportSQLiteProgram {
private List<Object> mBindArgsCache = new ArrayList<>();
@Override
public void bindNull(int index) {
saveArgsToCache(index, null);
}
@Override
public void bindLong(int index, long value) {
saveArgsToCache(index, value);
}
@Override
public void bindDouble(int index, double value) {
saveArgsToCache(index, value);
}
@Override
public void bindString(int index, String value) {
saveArgsToCache(index, value);
}
@Override
public void bindBlob(int index, byte[] value) {
saveArgsToCache(index, value);
}
@Override
public void clearBindings() {
mBindArgsCache.clear();
}
@Override
public void close() { }
private void saveArgsToCache(int bindIndex, Object value) {
// The index into bind methods are 1...n
int index = bindIndex - 1;
if (index >= mBindArgsCache.size()) {
for (int i = mBindArgsCache.size(); i <= index; i++) {
mBindArgsCache.add(null);
}
}
mBindArgsCache.set(index, value);
}
/**
* Returns the list of arguments associated with the query.
*
* @return argument list.
*/
List<Object> getBindArgs() {
return mBindArgsCache;
}
}