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package net.anotheria.util.datatable;

import net.anotheria.util.StringUtils;

import java.util.ArrayList;
import java.util.List;

/**
 * A header of the table.
 *
 * @author lrosenberg
 * @version $Id: $Id
 */
public class DataHeader {
	/**
	 * List of names of headers.
	 */
	private List headers;
	
	/**
	 * Constructor for DataHeader.
	 */
	public DataHeader(){
		headers = new ArrayList<>();
	}
	
	/**
	 * Getter for the field headers.
	 *
	 * @return an array of {@link java.lang.String} objects.
	 */
	public String[] getHeaders(){
		return headers.toArray(new String[headers.size()]);
	}
	
	/**
	 * getHeader.
	 *
	 * @param index a int.
	 * @return a {@link java.lang.String} object.
	 */
	public String getHeader(int index){
		return headers.get(index);
	}
	
	/**
	 * addHeader.
	 *
	 * @param header a {@link java.lang.String} object.
	 */
	public void addHeader(String header){
		headers.add(header);
	}
	
	/**
	 * setHeader.
	 *
	 * @param index a int.
	 * @param header a {@link java.lang.String} object.
	 */
	public void setHeader(int index, String header){
		headers.set(index, header);
	}
	
	/**
	 * getIndex.
	 *
	 * @param header a {@link java.lang.String} object.
	 * @return a int.
	 */
	public int getIndex(String header){
		return headers.indexOf(header);
	}
	
	/**
	 * hasHeader.
	 *
	 * @param header a {@link java.lang.String} object.
	 * @return a boolean.
	 */
	public boolean hasHeader(String header){
		return headers.contains(header);
	}
	
	/** {@inheritDoc} */
	@Override
	public String toString(){
		String ret = "[";
		ret += StringUtils.concatenateTokens(headers, ";");
		ret += "]";
		return ret;
	}
}