org.springframework.richclient.form.FormatterFactory.java Source code

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Here is the source code for org.springframework.richclient.form.FormatterFactory.java

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/*
 * Copyright 2002-2004 the original author or authors.
 * 
 * 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 org.springframework.richclient.form;

import java.util.Date;

import javax.swing.JFormattedTextField;
import javax.swing.JFormattedTextField.AbstractFormatter;
import javax.swing.JFormattedTextField.AbstractFormatterFactory;
import javax.swing.text.DateFormatter;
import javax.swing.text.DefaultFormatter;
import javax.swing.text.NumberFormatter;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.binding.value.swing.ValueCommitPolicy;
import org.springframework.util.Assert;

/**
 * 
 * @author Keith Donald
 */
public class FormatterFactory extends AbstractFormatterFactory {

    private static final Log logger = LogFactory.getLog(FormatterFactory.class);

    private ValueCommitPolicy valueCommitPolicy = ValueCommitPolicy.AS_YOU_TYPE;

    private Class valueClass;

    public FormatterFactory(Class valueClass) {
        this(valueClass, ValueCommitPolicy.AS_YOU_TYPE);
    }

    public FormatterFactory(Class valueClass, ValueCommitPolicy policy) {
        this.valueClass = valueClass;
        setValueCommitPolicy(policy);
    }

    public void setValueCommitPolicy(ValueCommitPolicy policy) {
        Assert.notNull(policy);
        this.valueCommitPolicy = policy;
    }

    public AbstractFormatter getFormatter(JFormattedTextField source) {
        Object value = source.getValue();
        DefaultFormatter formatter;
        if (value instanceof Date) {
            formatter = new DateFormatter();
        } else if (value instanceof Number) {
            formatter = new NumberFormatter();
        } else {
            formatter = new DefaultFormatter();
        }
        if (logger.isDebugEnabled()) {
            logger.debug("Factory returning new formatter " + formatter + " for text field " + source);
        }
        valueCommitPolicy.configure(source, formatter);
        if (valueClass != null) {
            formatter.setValueClass(valueClass);
        } else if (value != null) {
            formatter.setValueClass(value.getClass());
        }
        return formatter;
    }
}