java - stream handler to @lob field in jpa entity -


क्या डीबी CLOB से < / Code> द्वारा स्ट्रिंग क्षेत्र @Lob द्वारा annated। मैं अपनी सेवा के लिए सभी फ़ील्ड को प्राप्त किए बिना रेखा से फ़ील्ड लाइन पढ़ना चाहता हूं।

I'am का उपयोग कर रहा है: 

  BufferedReader रीडर = नया BufferedReader (New StringReader (entity.getField) ()));

पढ़ना सेवा शुरू करने पर लेन-देन शुरू होती है और सभी कार्य किए जाने के बाद किया जाता है। I'am यकीन है कि यह कैसे काम करता है क्या रीडर कंक्टक्टर से सर्विस मेमोरी में पूरा क्षेत्र मिल गया है या डीबी में डेटा के लिए हेन्डलर ही है?

इसी प्रकार की संहिता JDBC कनेक्शन बिना JPA के साथ है और java.sql.ResultSet.getNCharacterStream (int कॉलम इंडैक्स) ।


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