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<td style="vertical-align: top;; padding: 0px; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HHH-8948" style="color: #3b73af; text-decoration: none">Re: Blob type incompatible with JDBC3 drivers (i.e. jTDS)</a> </span> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <p style="margin: 10px 0 0 0; margin-top: 0">In my opinion this has nothing todo with the Java Version. The problem is that Hibernate didn't respect the drivers reported JDBC Version within Blob type.<br> The implementation always uses <em>java.sql.PreparedStatement.setBinaryStream(int, InputStream, long)</em> wich results in the mentioned error.<br> If driver reports JDBC VErsion 3 it must use <em>java.sql.PreparedStatement.setBinaryStream(int, InputStream, int)</em>.</p> <p style="margin: 10px 0 0 0">We fixed this in our project by register a type overwrite with a custom BlobTypeDesciptor and check if the length is smaller than integers max value:</p>
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<pre class="code-java" style="margin: 10px 0 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">static</span> <span class="code-keyword" style="color: #000091">final</span> FixedBlobTypeDescriptor STREAM_BINDING = <span class="code-keyword" style="color: #000091">new</span> FixedBlobTypeDescriptor() {
@Override
<span class="code-keyword" style="color: #000091">public</span> <X> FixedBasicBinder<X> getBlobBinder(<span class="code-keyword" style="color: #000091">final</span> JavaTypeDescriptor<X> javaTypeDescriptor) {
<span class="code-keyword" style="color: #000091">return</span> <span class="code-keyword" style="color: #000091">new</span> FixedBasicBinder<X>(javaTypeDescriptor, <span class="code-keyword" style="color: #000091">this</span>) {
@Override
<span class="code-keyword" style="color: #000091">protected</span> void doBind(PreparedStatement st, X value, <span class="code-object" style="color: #910091">int</span> index, WrapperOptions options) <span class="code-keyword" style="color: #000091">throws</span> SQLException {
<span class="code-keyword" style="color: #000091">final</span> BinaryStream binaryStream = javaTypeDescriptor.unwrap(
value,
BinaryStream.class,
options
);
<span class="code-object" style="color: #910091">long</span> length = binaryStream.getLength();
<span class="code-keyword" style="color: #000091">if</span> (length <= <span class="code-object" style="color: #910091">Integer</span>.MAX_VALUE) {
st.setBinaryStream(index, binaryStream.getInputStream(), (<span class="code-object" style="color: #910091">int</span>) length);
}
<span class="code-keyword" style="color: #000091">else</span> {
st.setBinaryStream(index, binaryStream.getInputStream(), length);
}
}
};
}
};
</pre>
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