Berkeley DB: Db.set_re_len
Description: Berkeley DB: An embedded database programmatic toolkit.
Keywords: embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,java,C,C++

# Db.set_re_len |

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    import com.sleepycat.db.*;

    public void set_re_len(int re_len)
        throws DbException;

# Description

For the Queue access method, specify that the records are of length re_len.

For the Recno access method, specify that the records are fixed-length, not byte-delimited, and are of length re_len.

Any records added to the database that are less than re_len bytes long are automatically padded (see Db.set_re_pad for more information).

Any attempt to insert records into the database that are greater than re_len bytes long will cause the call to fail immediately and return an error.

The Db.set_re_len interface may be used only to configure Berkeley DB before the Db.open interface is called.

The Db.set_re_len method throws an exception that encapsulates a non-zero error value on failure.

# Errors

The Db.set_re_len method may fail and throw an exception encapsulating a non-zero error for the following conditions:

EINVAL
  An invalid flag value or parameter was specified.

  Called after Db.open was called.

The Db.set_re_len method may fail and throw an exception for errors specified for other Berkeley DB and C library or system methods. If a catastrophic error has occurred, the Db.set_re_len method may fail and throw a DbRunRecoveryException, in which case all subsequent Berkeley DB calls will fail in the same way.

# Class

Db

# See Also

Db.associate, Db.close, Db.cursor, Db.del, Db.fd, Db.get, Db.pget, Db.get_byteswapped, Db.get_type, Db.join, Db.key_range, Db.open, Db.put, Db.remove, Db.rename, Db.set_append_recno, Db.set_bt_minkey, Db.set_cachesize, Db.set_errcall, Db.set_errpfx, Db.set_feedback, Db.set_flags, Db.set_h_ffactor, Db.set_h_nelem, Db.set_lorder, Db.set_pagesize, Db.set_q_extentsize, Db.set_re_delim, Db.set_re_len, Db.set_re_pad, Db.set_re_source, Db.stat, Db.sync, Db.truncate, Db.upgrade, and Db.verify.`

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