added the option of providing a database specific custom SQLExceptionTranslator to provide customized translation for any SQLException before the error codes translation happens (SPR-4899)

Author: Thomas Risberg

org.springframework.jdbc/src/main/java/org/springframework/jdbc/support/SQLErrorCodeSQLExceptionTranslator.java

@@ -188,6 +188,17 @@ protected DataAccessException doTranslate(String task, String sql, SQLException
 			return dex;
 		}
 
+		// Next, try the custom SQLException translator, if available.
+		if (this.sqlErrorCodes != null) {
+			SQLExceptionTranslator customTranslator = this.sqlErrorCodes.getCustomSqlExceptionTranslator();
+			if (customTranslator != null) {
+				DataAccessException customDex = customTranslator.translate(task, sql, sqlEx);
+				if (customDex != null) {
+					return customDex;
+				}
+			}
+		}
+
 		// Check SQLErrorCodes with corresponding error code, if available.
 		if (this.sqlErrorCodes != null) {
 			String errorCode = null;

org.springframework.jdbc/src/main/java/org/springframework/jdbc/support/SQLErrorCodes.java

@@ -17,6 +17,8 @@
 package org.springframework.jdbc.support;
 
 import org.springframework.util.StringUtils;
+import org.springframework.util.Assert;
+import org.springframework.dao.InvalidDataAccessResourceUsageException;
 
 /**
  * JavaBean for holding JDBC error codes for a particular database.
@@ -37,6 +39,8 @@ public class SQLErrorCodes {
 
 	private boolean useSqlStateForTranslation = false;
 
+	private SQLExceptionTranslator customSqlExceptionTranslator = null;
+
 	private String[] badSqlGrammarCodes = new String[0];
 
 	private String[] invalidResultSetAccessCodes = new String[0];
@@ -97,6 +101,26 @@ public boolean isUseSqlStateForTranslation() {
 		return this.useSqlStateForTranslation;
 	}
 
+	public SQLExceptionTranslator getCustomSqlExceptionTranslator() {
+		return customSqlExceptionTranslator;
+	}
+
+	public void setCustomSqlExceptionTranslatorClass(Class customSqlExceptionTranslatorClass) {
+		if (customSqlExceptionTranslatorClass != null) {
+			try {
+				this.customSqlExceptionTranslator =
+						(SQLExceptionTranslator) customSqlExceptionTranslatorClass.newInstance();
+			}
+			catch (InstantiationException e) {
+				throw new InvalidDataAccessResourceUsageException(
+						"Unable to instantiate " + customSqlExceptionTranslatorClass.getName(), e);
+			}
+			catch (IllegalAccessException e) {
+				throw new InvalidDataAccessResourceUsageException(
+						"Unable to instantiate " + customSqlExceptionTranslatorClass.getName(), e);
+			}
+		}
+	}
 
 	public void setBadSqlGrammarCodes(String[] badSqlGrammarCodes) {
 		this.badSqlGrammarCodes = StringUtils.sortStringArray(badSqlGrammarCodes);