com.trenako.web.editors.WeakDbRefPropertyEditor.java Source code

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Here is the source code for com.trenako.web.editors.WeakDbRefPropertyEditor.java

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/*
 * Copyright 2012 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 com.trenako.web.editors;

import java.beans.PropertyEditorSupport;

import org.apache.commons.lang3.StringUtils;

import com.trenako.mapping.DbReferenceable;
import com.trenako.mapping.WeakDbRef;

/**
 * Custom {@code PropertyEditor} for fields with {@link WeakDbRef} type.
 *
 * @author Carlo Micieli
 */
public class WeakDbRefPropertyEditor extends PropertyEditorSupport {

    private final boolean allowEmpty;

    /**
     * Creates a new {@code WeakDbRefPropertyEditor}.
     *
     * @param allowEmpty if empty strings should be allowed
     */
    public WeakDbRefPropertyEditor(boolean allowEmpty) {
        this.allowEmpty = allowEmpty;
    }

    @Override
    public void setAsText(String text) throws IllegalArgumentException {
        if (allowEmpty && StringUtils.isBlank(text)) {
            setValue(null);
            return;
        }

        setValue(WeakDbRef.buildFromSlug(text, DbReferenceable.class));
    }
}