package at.gv.egovernment.moa.id.commons.db.dao.config;

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.Id;
import javax.persistence.MappedSuperclass;

@MappedSuperclass
public abstract class AbstractConfigProperty implements Serializable{
	
	
	
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	@Id
	@Column(name = "propertyKey", unique = true)
	protected String key;

	public AbstractConfigProperty() {
		super();
	}

	
	/**
	 * Returns the property's value (which might be {@code null}).
	 * @return The property's value (might be {@code null}).
	 */
	abstract public String getValue();

	/**
	 * Sets the property's value.
	 * @param value The value
	 */
	abstract public void setValue(String value);
	
	/**
	 * Returns the property's key.
	 * @return The key.
	 */
	public String getKey() {
		return key;
	}

	/**
	 * Sets the property's key.
	 * @param key The key
	 */
	public void setKey(String key) {
		this.key = key;
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((key == null) ? 0 : key.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		AbstractConfigProperty other = (AbstractConfigProperty) obj;
		if (key == null) {
			if (other.key != null)
				return false;
		} else if (!key.equals(other.key))
			return false;
		return true;
	}

	public String toString() {
		StringBuilder builder = new StringBuilder();
		builder.append(getImplementationName());
		builder.append(" [key=");
		builder.append(getKey());
		builder.append(", value=");
		builder.append(getValue());
		builder.append("]");
		return builder.toString();
	}
	
	/**
	 * Get a name for this Entity-Implementation class
	 * 
	 * @return
	 */
	protected String getImplementationName() {
		return getImplementationClass().getSimpleName();
		
	}
	
	/**
	 * Get get Class of the implemented Entity
	 * 
	 * @return
	 */
	abstract protected Class<? extends AbstractConfigProperty> getImplementationClass();
	
	
}