Bug 151788 Provide additional ODA runtime hints to the ODA consumer
Some ODA runtime drivers are not able to obtain sufficient metadata on its parameters and result set column. Such metadata is thus needed to be collected at design time, for use by the BIRT ODA consumer. For example, the native data type of a parameter and column is often needed, but is not currently available to the odaconsumer in the Data Engine API runtime hints. This enhancement involves adding the native data type to the Data Engine API, and passing through its value from the ROM Model in report design to the ODA consumer.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/api/IParameterDefinition.java
{
    /**
     * Returns the parameter name. 
     * @return the name of the parameter. Null if parameter is identified by index.
     */
    public abstract String getName();
    /**
     * Returns the parameter position. Parameter positions start from 1.
     * @return the parameter position. -1 if parameter is identified by name.
     */
    public abstract int getPosition();
    /**
     * Returns the parameter data type. See the <code>org.eclipse.birt.core.data.DataType</code>
     *  class for return value constants.
     * @return the parameter data type
     */
    public abstract int getType();
	
	/**
	 * Returns whether this parameter is an input parameter. 
	 * A parameter can be of both input and output modes.
	 * @return	true if this parameter is of input mode, 
	 * 			false otherwise.
	 */
	public abstract boolean isInputMode();
	
	/**