Bug 188596 Some parameter value cannot be passed to report through URL[0002]
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ScalarParameterBean.java
* @return Returns the isRequired.
	 */
	public boolean isRequired( )
	{
		return isRequired;
	}
	/**
	 * @param isRequired
	 *            The isRequired to set.
	 */
	public void setRequired( boolean isRequired )
	{
		this.isRequired = isRequired;
	}
	/**
	 * @return the defaultValue
	 */
	public String getDefaultValue( )
	{
		return defaultValue;
	}
	/**
	 * @param defaultValue
	 *            the defaultValue to set
	 */
	public void setDefaultValue( String defaultValue )
	{
		this.defaultValue = defaultValue;
	}
	/**