Android Open Source - CursorMapper Cursor Extractor

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Back to project page CursorMapper.

License

The source code is released under:

Apache License

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Java Source Code

/*
 * Copyright (C) 2014 Pawe? Urban<pawel.urban@gmail.com>
 *//from  w  w  w . ja  va 2s  .c  om
 * 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 cursor.mapper.cursor;

import static timber.log.Timber.w;

import android.database.Cursor;

import java.lang.reflect.Field;

import cursor.mapper.cursor.extractor.ColumnExtractor;
import cursor.mapper.cursor.extractor.ColumnExtractorFactory;

public class CursorExtractor {

    private ColumnExtractorFactory mColumnExtractorFactory;

    public CursorExtractor() {
        this(ColumnExtractorFactory.getInstance());
    }

    public CursorExtractor(ColumnExtractorFactory factory) {
        mColumnExtractorFactory = factory;
    }

    public Object extract(Cursor cursor, String columnName, Field fieldType) {
        int columnIndex = cursor.getColumnIndex(columnName);

        ColumnExtractor columnExtractor = mColumnExtractorFactory.get(fieldType);

        if (columnExtractor == null) {
            w("Unsupported column type: " + fieldType);
            return null;
        }

        return columnExtractor.extract(fieldType.getType(), cursor, columnIndex);
    }

    public boolean hasColumn(Cursor cursor, String columnName) {
        try {
            cursor.getColumnIndexOrThrow(columnName);
            return true;
        } catch (IllegalArgumentException e) {
            return false;
        }
    }

}

Java Source Code List