// This Source Code is in the Public Domain per: http://litesoft.org/License.txt
package org.litesoft.db;

import org.litesoft.commonfoundation.typeutils.*;

public class DBtableIndex
{
    private String mIndexName;
    private boolean mUnique;
    private String[] mColumnNames;

    public DBtableIndex( String pIndexName, boolean pUnique, String... pColumnNames )
    {
        mIndexName = Strings.assertNotNullNotEmpty( "IndexName", pIndexName );
        mUnique = pUnique;
        mColumnNames = Strings.assertNotNullNotEmptyAndNoNullsOrEmptiesAndTrim( "ColumnNames", pColumnNames );
    }

    public String getIndexName()
    {
        return mIndexName;
    }

    public boolean isUnique()
    {
        return mUnique;
    }

    public String[] getColumnNames()
    {
        return mColumnNames;
    }

    @Override
    public String toString()
    {
        StringBuilder sb = new StringBuilder();
        sb.append( mIndexName );
        if ( mUnique )
        {
            sb.append( "(Unique)" );
        }
        String zPrefix = ": ";
        for ( String zColumnName : mColumnNames )
        {
            sb.append( zPrefix ).append( zColumnName );
            zPrefix = ", ";
        }
        return sb.toString();
    }
}