// For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-Java
//Load a document from a BLOB database field 
private class InsertDocumentAtMailMergeBlobHandler implements IFieldMergingCallback {
	/**
	 * This handler makes special processing for the "Document_1" field. The
	 * field value contains the path to load the document. We load the
	 * document and insert it into the current merge field.
	 */
	public void fieldMerging(FieldMergingArgs e) throws Exception {
		if ("Document_1".equals(e.getDocumentFieldName())) {
			// Use document builder to navigate to the merge field with the specified name.
			DocumentBuilder builder = new DocumentBuilder(e.getDocument());
			builder.moveToMergeField(e.getDocumentFieldName());

			// Load the document from the blob field.
			ByteArrayInputStream inStream = new ByteArrayInputStream((byte[]) e.getFieldValue());
			Document subDoc = new Document(inStream);
			inStream.close();

			// Insert the document.
			insertDocument(builder.getCurrentParagraph(), subDoc);

			// The paragraph that contained the merge field might be empty now and you probably want to delete it.
			if (!builder.getCurrentParagraph().hasChildNodes())
				builder.getCurrentParagraph().remove();

			// Indicate to the mail merge engine that we have inserted what we wanted.
			e.setText(null);
		}
	}

	public void imageFieldMerging(ImageFieldMergingArgs args) throws Exception {
		// Do nothing.
	}
}