Source code
package org.springframework.jdbc.core;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import org.jspecify.annotations.Nullable;
import org.springframework.jdbc.support.JdbcUtils;
/**
* Interface to be implemented for setting values for more complex database-specific
* types not supported by the standard {@code setObject} method. This is
* effectively an extended variant of {@link org.springframework.jdbc.support.SqlValue}.
*
* <p>Implementations perform the actual work of setting the actual values. They must
* implement the callback method {@code setTypeValue} which can throw SQLExceptions
* that will be caught and translated by the calling code. This callback method has
* access to the underlying Connection via the given PreparedStatement object, if that
* should be needed to create any database-specific objects.
*
* @author Thomas Risberg
* @author Juergen Hoeller
* @since 1.1
* @see java.sql.Types
* @see java.sql.PreparedStatement#setObject
* @see JdbcOperations#update(String, Object[], int[])
* @see org.springframework.jdbc.support.SqlValue
*/
public interface SqlTypeValue {
/**
* Constant that indicates an unknown (or unspecified) SQL type.
* Passed into {@code setTypeValue} if the original operation method
* does not specify an SQL type.
* @see java.sql.Types
* @see JdbcOperations#update(String, Object[])
*/
int TYPE_UNKNOWN = JdbcUtils.TYPE_UNKNOWN;
/**
* Set the type value on the given PreparedStatement.
* @param ps the PreparedStatement to work on
* @param paramIndex the index of the parameter for which we need to set the value
* @param sqlType the SQL type of the parameter we are setting
* @param typeName the type name of the parameter (optional)
* @throws SQLException if an SQLException is encountered while setting parameter values
* @see java.sql.Types
* @see java.sql.PreparedStatement#setObject
*/
void setTypeValue(PreparedStatement ps, int paramIndex, int sqlType, @Nullable String typeName)
throws SQLException;
}
Run 1
This code demonstrates excellent readability. The interface is well-structured with clear separation between documentation, constants, and the method signature. Javadoc comments are thorough and explain the purpose, parameters, and exceptions in detail. The method signature is concise yet descriptive, with clear parameter names (ps, paramIndex, sqlType, typeName) and proper use of @Nullable annotation. Nesting is minimal since this is a single interface declaration. The code follows Spring Framework conventions, making it familiar to experienced Java developers. While the Javadoc is comprehensive, it's not excessive for a public API. The single constant TYPE_UNKNOWN is well-documented. The code achieves strong clarity of intent - it clearly defines a callback interface for setting complex SQL type values. Overall, this is exemplary Java API code that balances thorough documentation with clean implementation.
Run 2
The code is highly readable: it is a single-purpose interface with one constant and one method. Structure is excellent, with clear separation of Javadoc, constant, and method. Nesting is nil. The Javadoc thoroughly explains intent, valid parameters, and expected behavior. Length is concise and appropriate for a Spring callback contract. Action granularity and reading flow are natural, following standard Java conventions.
Run 3
The code is highly readable. It follows a clean, conventional Java interface structure with a clear package declaration, imports, and Javadoc. The Javadoc is comprehensive and well-formatted, explaining the interface's purpose, usage, and parameters. The structure is logical: constant declaration followed by a single method definition. There is no nesting, and the method signature is concise with clear parameter names. The code is not unnecessarily long — the extensive Javadoc is appropriate for a public API. Action granularity is ideal as there is only one method declaration. Reading flow is natural and typical for Spring Framework code.
Run 1
Code Structure: Cleanly organized into imports, interface documentation, a constant, and one callback declaration. Nesting: Minimal, with only the interface scope. Clarity of intent: Descriptive names and comprehensive Javadoc clearly explain database-specific parameter handling, optional type names, and exception behavior. Code length: The interface is concise, though some documentation is repetitive. Action granularity: Each declaration has a single responsibility; the wrapped method signature remains easy to follow. Reading flow: Natural top-to-bottom progression, with consistent formatting and useful cross-references. Minor spacing inconsistencies and verbose wording slightly reduce polish.
Run 2
Code Structure: The interface is logically organized, with imports, interface documentation, a constant, and a single method declaration. Nesting: There is no nested control flow, making the code easy to scan. Clarity of intent: Descriptive names and thorough Javadoc clearly explain the callback's purpose, parameters, optional type name, and exception behavior; 'ps' is slightly abbreviated. Code length: The implementation is minimal, although some documentation is repetitive. Action granularity: Each declaration has a distinct purpose, and the wrapped method signature remains easy to follow. Reading flow: The progression from interface overview to constant to callback contract is natural, with consistent formatting and helpful cross-references.
Run 3
Code Structure: A logically organized interface with imports, documentation, a constant, and one method. Nesting: Flat, with no nested control flow. Clarity of intent: Descriptive names and thorough Javadoc clearly explain the callback, parameters, and exception behavior; the abbreviated parameter name 'ps' is a minor weakness. Code length: The implementation is concise, though some documentation is repetitive. Action granularity: Each declaration serves a single purpose, and the wrapped method signature remains readable. Reading flow: Natural top-to-bottom progression with consistent formatting; extra blank lines and limited separation around imports are minor stylistic issues.