oracle.jbo.domain
Class RowID

oracle.jbo.domain.RowID

All Implemented Interfaces:

java.io.Serializable

public class RowID

implements java.io.Serializable

This class provides a lightweight wrapper for oracle.sql.RowID, the Java representation of the ROWID database type. This wrapper allows an instance of the oracle.sql.RowID to be used as an immutable Domain object.

RowID objects consist of data (a byte array) and a Domain type code. Domain row IDs extend SQL row IDs by being convertable to JDBC values.

The oracle.jbo.domain.RowID class is the Java representation of the underlying database type that you must use if you want to exploit the domain feature of Business Components for Java.

Since:

JDeveloper 3.0

See Also:

Serialized Form

Constructor Summary

RowID()
Creates a default RowID Domain object.

RowID(byte[] value)
Internal: Applications should not invoke this constructor.

RowID(java.lang.String value)
Internal: Applications should not invoke this constructor.

Method Summary

Type	Method
boolean	equals(java.lang.Object other) Tests this for equality with another object.
static CustomDatumFactory	getCustomDatumFactory() Internal: Applications should not invoke this method.
java.lang.Object	getData() Internal: Applications should not invoke this method.
int	hashCode() Computes a hash code for this.
void	setContext(oracle.jbo.domain.DomainOwnerInterface owner, oracle.jbo.Transaction trans, java.lang.Object ctx) Internal: Applications should not invoke this method.
Datum	toDatum(OracleConnection conn) Internal: Applications should not invoke this method.
java.lang.String	toString() For testing purposes only: converts this to a textual representation.

Constructor Detail

RowID

public RowID()

Creates a default RowID Domain object.

This constructor does not create a null RowID. To create a null RowID, use one of the oracle.jbo.domain.NullValue objects to indicate null.

RowID

public RowID(byte[] value)

Internal: Applications should not invoke this constructor.

Creates a RowID Domain object from the given byte array.

Parameters:

value - a value returned by a previous call to getBytes() on an SQL object compatable with RowID.

value - byte array containing the value of the RowID.

RowID

public RowID(java.lang.String value)

Internal: Applications should not invoke this constructor.

Creates a RowID Domain object from a Java String.

Parameters:

value - a textual representation of a RowID.

Throws:

java.sql.SQLException - if the representation is invalid.

Method Detail

getCustomDatumFactory

public static CustomDatumFactory getCustomDatumFactory()

Internal: Applications should not invoke this method.

Initializes the RowID Domain. This method is invoked when Business Components for Java is initialized.

Returns:

the CustomDatumFactory for the RowID Domain.

toDatum

public Datum toDatum(OracleConnection conn)
              throws java.sql.SQLException

Internal: Applications should not invoke this method.

Converts this RowID Domain object back into an SQL ROWID object.

Parameters:

conn - Not used.

Returns:

A Datum containing ROWID object.

Throws:

java.sql.SQLException - Never.

getData

public java.lang.Object getData()

Internal: Applications should not invoke this method.

Converts this to a JDBC object.

Returns:

the JDBC representation of this, or null, if the conversion fails.

setContext

public void setContext(oracle.jbo.domain.DomainOwnerInterface owner,
                       oracle.jbo.Transaction trans,
                       java.lang.Object ctx)

Internal: Applications should not invoke this method.

toString

public java.lang.String toString()

For testing purposes only: converts this to a textual representation.

equals

public boolean equals(java.lang.Object other)

Tests this for equality with another object.

The argument is converted to a RowID object, if necessary.

Parameters:

other - an arbitrary Object.

Returns:

true if conversion was successful and the converted argument is identical to this.

hashCode

public int hashCode()

Computes a hash code for this.

Returns:

the hash code of this.