com.activeandroid.TableInfo.java Source code

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Here is the source code for com.activeandroid.TableInfo.java

Source

package com.activeandroid;

/*
 * Copyright (C) 2010 Michael Pardo
 *
 * 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.
 */

import java.lang.reflect.Field;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import com.activeandroid.annotation.Column;
import com.activeandroid.annotation.Table;
import com.activeandroid.util.ReflectionUtils;
import com.google.common.base.CaseFormat;

public final class TableInfo {
    //////////////////////////////////////////////////////////////////////////////////////
    // PRIVATE MEMBERS
    //////////////////////////////////////////////////////////////////////////////////////

    private Class<? extends Model> mType;
    private String mTableName;

    private Map<Field, String> mColumnNames = new LinkedHashMap<Field, String>();

    //////////////////////////////////////////////////////////////////////////////////////
    // CONSTRUCTORS
    //////////////////////////////////////////////////////////////////////////////////////

    public TableInfo(Class<? extends Model> type) {
        mType = type;

        final Table tableAnnotation = type.getAnnotation(Table.class);
        if (tableAnnotation != null) {
            mTableName = tableAnnotation.name();
        } else {
            mTableName = type.getSimpleName();
            CaseFormat.LOWER_CAMEL.to(CaseFormat.UPPER_UNDERSCORE, mTableName);
        }

        List<Field> fields = new LinkedList<Field>(ReflectionUtils.getDeclaredColumnFields(type));
        //      Collections.reverse(fields);
        //WHY?

        for (Field field : fields) {
            final Column columnAnnotation = field.getAnnotation(Column.class);
            String columnName;
            if (columnAnnotation == null) {
                columnName = field.getName();
                CaseFormat.LOWER_CAMEL.to(CaseFormat.UPPER_UNDERSCORE, columnName);
            } else {
                columnName = columnAnnotation.name();
            }

            mColumnNames.put(field, columnName);
        }
    }

    //////////////////////////////////////////////////////////////////////////////////////
    // PUBLIC METHODS
    //////////////////////////////////////////////////////////////////////////////////////

    public Class<? extends Model> getType() {
        return mType;
    }

    public String getTableName() {
        return mTableName;
    }

    public Collection<Field> getFields() {
        return mColumnNames.keySet();
    }

    public String getColumnName(Field field) {
        return mColumnNames.get(field);
    }
}