Use StringBuilder in JdbcTemplate for batch updates #36032
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Signed-off-by: jher235 <tim668666@gmail.com>
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See gh-36032 Signed-off-by: jher235 <tim668666@gmail.com>
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Thanks for your contribution @jher235 this is now merged in main. |
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Description
As discussed in issue #36030, this PR refactors the exception handling logic within
JdbcTemplate.batchUpdate(String... sql).Currently, String concatenation is used inside a loop when constructing the error
message for a
BatchUpdateException. This PR replaces it withStringBuildertoavoid unnecessary temporary object allocation in the failure path.
Changes
StringBuilder: avoids unnecessary temporaryobject allocation for loop-based SQL accumulation.
Math.min(updateCounts.length, sql.length)to safelyhandle edge cases where JDBC drivers may return fewer update counts than the number
of SQL statements.
resulting error message format is identical to the previous implementation.
Verification
Verified by the existing CI test suite.