Bug 213959 [Regression]Blob computed column doesn't work
Description: [Regression]Blob type computed column doesn't work Build number: 2.3.0.v20071228-1005 Steps to reproduce: 1, New a sampleDB from table PRODUCTLINE 2, New a computed column A; type is Blob; expression is row["IMAGE"] 3, Preview in dataset Expected result: The dataset can be preview ok Actual result: Error happened Error log: A BIRT exception occurred. Plug-in Provider:Eclipse.org Plug-in Name:BIRT Data Engine Plug-in ID:org.eclipse.birt.data Version:2.3.0.v20071228-1005 Error Code:data.engine.CompCol.FailRetrieveValueComputedColumn Error Message:Fail to compute value for computed column "AAA". Can not convert the value of [B@1a9efcd to Blob type.
core/org.eclipse.birt.core/src/org/eclipse/birt/core/data/DataTypeUtil.java
/**
	 * Call org.eclipse.birt.core.format.DateFormatter
	 * 
	 * @param source
	 * @return
	 */
	private static String toString( Date source, ULocale locale )
	{
		DateFormatter df = null;
		
		df = (DateFormatter) ( dfMap.get( locale ) );
		if ( df == null )
		{
			synchronized ( dfMap )
			{
				df = (DateFormatter) ( dfMap.get( locale ) );
				if ( df == null )
				{
					df = new DateFormatter( locale );
					dfMap.put( locale, df );
				}
			}
		}
		return df.format( (Date) source );
	}
	/**
	 * Converts an ODA data type code to the Java class
	 * of its corresponding Data Engine ODI data type. <br><br>
	 * <b>ODA Data Type -> ODI Type Class</b><br>
	 * <i>Integer -> java.lang.Integer<br>