@Nullable
    public Integer get(Class<?> clazz) {
        if (sqlTypes.containsKey(clazz)) {
            return sqlTypes.get(clazz);
        } else {
            return defaultSqlTypes.get(clazz);
        }
    }
{@code JDBCTypeMapping} defines a mapping from JDBC types to Java classes.

@author tiwe
querydsl-sql/src/main/java/com/querydsl/sql/JDBCTypeMapping.java