ColumnType.java :  » App » hiberdroid » net » matzat » android » hiberdroid » mapping » Android Open Source

/*
 * Copyright 2010 Christian Matzat and others
 *
 *    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 net.matzat.android.hiberdroid.mapping;

import net.matzat.android.hiberdroid.exception.ColumnTypeNotSupportedException;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

/**
 * This Enum matches the Java and Database value types.
 */
public enum ColumnType {

    STRING("TEXT", String.class),
    LONG("INTEGER", Long.class, long.class),
    INTEGER("INTEGER", Integer.class, int.class),
    SHORT("INTEGER", Short.class, short.class),
    BYTE("INTEGER", Byte.class, byte.class),
    FLOAT("REAL", Float.class, float.class),
    DOUBLE("REAL", Double.class, double.class),
    DATE("STRING", Date.class),
    BLOB("BLOB", byte[].class),
    BOOLEAN("BOOLEAN", Boolean.class, boolean.class);

    private List<Class> typeClasses;
    private String sqlType;

    ColumnType(String sqlType, Class... typeClasses) {
        this.sqlType = sqlType;
        this.typeClasses = new ArrayList<Class>();
        for (Class typeClass : typeClasses) {
            this.typeClasses.add(typeClass);
        }
    }

    /**
     * resolves the matching ColumnType for the given String
     *
     * @param valueToSearch String to search for
     * @return the matching ColumnType
     */
    public static ColumnType getByValue(String valueToSearch) {
        for (ColumnType value : ColumnType.values()) {
            if (value.name().equalsIgnoreCase(valueToSearch.trim())) {
                return value;
            }
        }
        throw new ColumnTypeNotSupportedException(String.format("columnType %s is not supported.", valueToSearch));
    }

    /**
     * resolves the matching ColumnType for the given Class
     *
     * @param valueToSearch Class to search for
     * @return the matching ColumnType
     */
    public static ColumnType getByType(Class valueToSearch) {
        for (ColumnType value : ColumnType.values()) {
            for (Class typeClass : value.typeClasses) {
                if (typeClass.equals(valueToSearch)) {
                    return value;
                }
            }
        }
        throw new ColumnTypeNotSupportedException(String.format("columnType %s is not supported.", valueToSearch.getSimpleName()));
    }

    /**
     * gets the main type class (Object) of this ColumnType
     *
     * @return type class of the ColumnType
     */
    public Class getTypeClass() {
        return typeClasses.get(0);
    }

    /**
     * gets the SQL type for this ColumnType
     *
     * @return SQL type for this ColumnType
     */
    public String getSqlType() {
        return sqlType;
    }
}