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StatementCreatorUtils uses setClob/setNClob with stream argument in case of typed String value exceeding 4000 characters (for Oracle compatibility) 

Issue: SPR-12240
This commit is contained in:
Juergen Hoeller 2014-09-27 00:40:35 +02:00
parent 3046fdd56a
commit 3908804486
1 changed files with 27 additions and 2 deletions
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29
spring-jdbc/src/main/java/org/springframework/jdbc/core/StatementCreatorUtils.java
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@ -16,6 +16,7 @@
package org.springframework.jdbc.core;
import java.io.StringReader;
import java.io.StringWriter;
import java.math.BigDecimal;
import java.math.BigInteger;
@ -24,6 +25,7 @@ import java.sql.Clob;
import java.sql.DatabaseMetaData;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.sql.Types;
import java.util.Arrays;
import java.util.Calendar;
@ -319,10 +321,33 @@ public abstract class StatementCreatorUtils {
((SqlValue) inValue).setValue(ps, paramIndex);
}
else if (sqlType == Types.VARCHAR || sqlType == Types.NVARCHAR ||
sqlType == Types.LONGVARCHAR || sqlType == Types.LONGNVARCHAR ||
((sqlType == Types.CLOB || sqlType == Types.NCLOB) && isStringValue(inValue.getClass()))) {
sqlType == Types.LONGVARCHAR || sqlType == Types.LONGNVARCHAR) {
ps.setString(paramIndex, inValue.toString());
}
else if ((sqlType == Types.CLOB || sqlType == Types.NCLOB) && isStringValue(inValue.getClass())) {
String strVal = inValue.toString();
if (strVal.length() > 4000) {
// Necessary for older Oracle drivers, in particular when running against an Oracle 10 database.
// Should also work fine against other drivers/databases since it uses standard JDBC 4.0 API.
try {
if (sqlType == Types.NCLOB) {
ps.setNClob(paramIndex, new StringReader(strVal), strVal.length());
}
else {
ps.setClob(paramIndex, new StringReader(strVal), strVal.length());
}
return;
}
catch (AbstractMethodError err) {
logger.debug("JDBC driver does not implement JDBC 4.0 'setClob(int, Reader, long)' method", err);
}
catch (SQLFeatureNotSupportedException ex) {
logger.debug("JDBC driver does not support JDBC 4.0 'setClob(int, Reader, long)' method", ex);
}
}
// Fallback: regular setString binding
ps.setString(paramIndex, strVal);
}
else if (sqlType == Types.DECIMAL || sqlType == Types.NUMERIC) {
if (inValue instanceof BigDecimal) {
ps.setBigDecimal(paramIndex, (BigDecimal) inValue);