ExcelExecutionFactory.java

/*
 * JBoss, Home of Professional Open Source.
 * See the COPYRIGHT.txt file distributed with this work for information
 * regarding copyright ownership.  Some portions may be licensed
 * to Red Hat, Inc. under one or more contributor license agreements.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 */

package org.teiid.translator.excel;

import javax.resource.cci.ConnectionFactory;

import org.teiid.language.QueryExpression;
import org.teiid.language.Select;
import org.teiid.metadata.RuntimeMetadata;
import org.teiid.translator.ExecutionContext;
import org.teiid.translator.ExecutionFactory;
import org.teiid.translator.FileConnection;
import org.teiid.translator.MetadataProcessor;
import org.teiid.translator.ResultSetExecution;
import org.teiid.translator.Translator;
import org.teiid.translator.TranslatorException;

@Translator(name="excel", description="Excel file translator")
public class ExcelExecutionFactory extends ExecutionFactory<ConnectionFactory, FileConnection> {

	public ExcelExecutionFactory() {
		setSourceRequiredForMetadata(true);
		setTransactionSupport(TransactionSupport.NONE);
	}
	
    @Override
    public void start() throws TranslatorException {
    	super.start();
    }

    @Override
    public ResultSetExecution createResultSetExecution(QueryExpression command, ExecutionContext executionContext, RuntimeMetadata metadata, FileConnection connection)
    		throws TranslatorException {
    	return new ExcelExecution((Select)command, executionContext, metadata, connection);
    }    
    	
    @Override
    public MetadataProcessor<FileConnection> getMetadataProcessor(){
        return new ExcelMetadataProcessor();
    }
	
	@Override
	public boolean supportsCompareCriteriaEquals() {
		return true; // only on ROW_ID
	}
	
	@Override
	public boolean supportsCompareCriteriaOrdered() {
		return true; //Only on ROW_ID
	}
	
	@Override
	public boolean supportsRowLimit() {
		return true; 
	}
	
	@Override
	public boolean supportsRowOffset() {
		return true;
	}
	
	@Override
	public boolean supportsOnlyLiteralComparison() {
		return true;
	}
	
	@Override
	public boolean supportsInCriteria() {
		return true;
	}
}