ParameterMetaData.java

/**
 SpagoBI, the Open Source Business Intelligence suite

 Copyright (C) 2012 Engineering Ingegneria Informatica S.p.A. - SpagoBI Competency Center
 This Source Code Form is subject to the terms of the Mozilla Public
 License, v. 2.0. If a copy of the MPL was not distributed with this file,
 You can obtain one at http://mozilla.org/MPL/2.0/.
 
**/

package it.eng.spagobi.studio.oda.impl;

import it.eng.spagobi.sdk.datasets.bo.SDKDataSetParameter;
import it.eng.spagobi.server.services.api.bo.IDataSetParameter;
import it.eng.spagobi.studio.utils.bo.DatasetParameter;

import org.apache.axis.description.TypeDesc;
import org.eclipse.datatools.connectivity.oda.IParameterMetaData;
import org.eclipse.datatools.connectivity.oda.OdaException;


/**
 * Implementation class of IParameterMetaData for an ODA runtime driver.
 * <br>
 * For demo purpose, the auto-generated method stubs have
 * hard-coded implementation that returns a pre-defined set
 * of meta-data and query results.
 * A custom ODA driver is expected to implement own data source specific
 * behavior in its place. 
 */
public class ParameterMetaData implements IParameterMetaData 
{
	IDataSetParameter[] sdkParametersMeta;
	
	public ParameterMetaData(IDataSetParameter[] sdkParametersMeta) {
		this.sdkParametersMeta = sdkParametersMeta;
	}
	/* 
	 * @see org.eclipse.datatools.connectivity.oda.IParameterMetaData#getParameterCount()
	 */
	public int getParameterCount() throws OdaException 
	{
        return sdkParametersMeta.length;
	}

    /*
	 * @see org.eclipse.datatools.connectivity.oda.IParameterMetaData#getParameterMode(int)
	 */
	public int getParameterMode( int param ) throws OdaException 
	{
		return IParameterMetaData.parameterModeIn;
	}

    /* (non-Javadoc)
     * @see org.eclipse.datatools.connectivity.oda.IParameterMetaData#getParameterName(int)
     */
    public String getParameterName( int param ) throws OdaException
    {
        return sdkParametersMeta[param-1].getName(); 
    }

	/* 
	 * @see org.eclipse.datatools.connectivity.oda.IParameterMetaData#getParameterType(int)
	 */
	public int getParameterType( int param ) throws OdaException 
	{
		String type = sdkParametersMeta[param-1].getType(); 
		//TypeDesc typeDesc = sdkParametersMeta[param-1].getTypeDesc();
        return java.sql.Types.CHAR;   // as defined in data set extension manifest
	}

	/* 
	 * @see org.eclipse.datatools.connectivity.oda.IParameterMetaData#getParameterTypeName(int)
	 */
	public String getParameterTypeName( int param ) throws OdaException 
	{
        int nativeTypeCode = getParameterType( param );
        return Driver.getNativeDataTypeName( nativeTypeCode );
	}

	/* 
	 * @see org.eclipse.datatools.connectivity.oda.IParameterMetaData#getPrecision(int)
	 */
	public int getPrecision( int param ) throws OdaException 
	{
		return -1;
	}

	/* 
	 * @see org.eclipse.datatools.connectivity.oda.IParameterMetaData#getScale(int)
	 */
	public int getScale( int param ) throws OdaException 
	{
		return -1;
	}

	/* 
	 * @see org.eclipse.datatools.connectivity.oda.IParameterMetaData#isNullable(int)
	 */
	public int isNullable( int param ) throws OdaException 
	{
		return IParameterMetaData.parameterNullableUnknown;
	}

}