com.vmware.appfactory.config.model.ConfigSetting.java Source code

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Here is the source code for com.vmware.appfactory.config.model.ConfigSetting.java

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/* ***********************************************************************
 * VMware ThinApp Factory
 * Copyright (c) 2009-2013 VMware, Inc. All Rights Reserved.
 *
 * 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.vmware.appfactory.config.model;

import javax.annotation.Nullable;
import javax.persistence.Entity;
import javax.persistence.Table;
import javax.persistence.UniqueConstraint;
import javax.validation.constraints.NotNull;

import org.apache.commons.lang.StringUtils;

import com.vmware.appfactory.common.base.AbstractRecord;

/**
 * Data model class for an AppFactory configuration setting value.
 */
@Entity
@Table(uniqueConstraints = @UniqueConstraint(columnNames = { "_key" }))
public class ConfigSetting extends AbstractRecord {
    @NotNull
    private String _key = "";

    @Nullable
    private String _value = null;

    /**
     * Creates a new instance.
     */
    public ConfigSetting() {
        /* Nothing to do */
    }

    /**
     * Set the configuration parameter key.
     * @param key
     */
    public void setKey(String key) {
        if (key == null) {
            throw new IllegalArgumentException();
        }

        _key = key;
    }

    /**
     * Gets the configuration key.
     * @return
     */
    public String getKey() {
        return _key;
    }

    /**
     * Set the value.
     * Note: all values persisted as strings, regardless of type.
     * @param value
     */
    public void setValue(@Nullable String value) {
        _value = value;
    }

    /**
     * Get the value.
     * Note: all values persisted as strings, regardless of type.
     * @return null if no value is set for this property, or a value
     * if one is.
     */
    @Nullable
    public String getValue() {
        return _value;
    }

    @Override
    public int deepCopy(AbstractRecord record) {
        ConfigSetting other = (ConfigSetting) record;
        int numChanges = 0;

        if (!StringUtils.equals(getKey(), other.getKey())) {
            setKey(other.getKey());
            numChanges++;
        }

        if (!StringUtils.equals(getValue(), other.getValue())) {
            setValue(other.getValue());
            numChanges++;
        }

        return numChanges;
    }
}