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eFaps is a framework used to map objects with or without attached files to a relational database and optional file systems (only for attaches files). Configurable access control can be provided down to object and attribute level depending on implementation and use case. Depending on requirements, events (like triggers) allow to implement business logic and to separate business logic from user interface. The framework includes integrations (e.g. webdav, full text search) and a web application as 'simple' configurable user interface. Some best practises, example web application modules (e.g. team work module) support administrators and implementers using this framework.

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/*
 * Copyright 2003 - 2011 The eFaps Team
 *
 * 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.
 *
 * Revision:        $Rev: 6679 $
 * Last Changed:    $Date: 2011-06-28 09:51:42 -0500 (Tue, 28 Jun 2011) $
 * Last Changed By: $Author: [email protected] $
 */

package org.efaps.admin.datamodel.ui;

import java.text.DecimalFormat;
import java.text.NumberFormat;

import org.efaps.admin.datamodel.Attribute;
import org.efaps.admin.dbproperty.DBProperties;
import org.efaps.db.Context;
import org.efaps.util.EFapsException;

/**
 * Class used to represent any type of number for the UI.
 *
 * @author The eFaps Team
 * @version $Id: NumberUI.java 6679 2011-06-28 14:51:42Z [email protected] $
 */
public class NumberUI
    extends StringUI
{
    /**
     * Needed for serialization.
     */
    private static final long serialVersionUID = 1L;

    /**
     * {@inheritDoc}
     */
    @Override
    public Object getObject4Compare(final FieldValue _fieldValue)
        throws EFapsException
    {
        return _fieldValue.getValue();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public int compare(final FieldValue _fieldValue,
                       final FieldValue _fieldValue2)
    {
        int ret = 0;
        if (_fieldValue.getValue() instanceof Long && _fieldValue2.getValue() instanceof Long) {
            final Long num = (Long) _fieldValue.getValue();
            final Long num2 = (Long) _fieldValue2.getValue();
            ret = num.compareTo(num2);
        } else if (_fieldValue.getValue() instanceof Integer && _fieldValue2.getValue() instanceof Integer) {
            final Integer num = (Integer) _fieldValue.getValue();
            final Integer num2 = (Integer) _fieldValue2.getValue();
            ret = num.compareTo(num2);
        }
        return ret;
    }

    /**
     * {@inheritDoc}
     * Validate the value by parsing it. If an error is thrown the value is not valid.
     */
    @Override
    public String validateValue(final String _value,
                                final Attribute _attribute)
    {
        String ret = null;
        try {
            Long.valueOf(_value);
        } catch (final NumberFormatException e) {
            ret = DBProperties.getProperty(NumberUI.class.getName() + ".InvalidValue");
        }
        return ret;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Object format(final Object _object,
                         final String _pattern)
        throws EFapsException
    {
        final DecimalFormat formatter = (DecimalFormat) NumberFormat.getInstance(Context.getThreadContext()
                        .getLocale());
        formatter.applyPattern(_pattern);
        return formatter.format(_object);
    }
}