org.apache.derby.catalog.types
Class ReferencedColumnsDescriptorImpl

java.lang.Object
  org.apache.derby.catalog.types.ReferencedColumnsDescriptorImpl

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, ReferencedColumns, Formatable, TypedFormat

public class ReferencedColumnsDescriptorImpl
extends java.lang.Object
implements ReferencedColumns, Formatable

See Also:

Serialized Form

Field Summary

private int[]

referencedColumns This class implements Formatable.

Constructor Summary

ReferencedColumnsDescriptorImpl()
Zero-argument constructor for Formatable interface

ReferencedColumnsDescriptorImpl(int[] referencedColumns)
Constructor for an ReferencedColumnsDescriptorImpl

Method Summary

int[]	getReferencedColumnPositions() Returns an array of 1-based column positions in the table that the check constraint is on.
int	getTypeFormatId() Get a universally unique identifier for the type of this object.
void	readExternal(java.io.ObjectInput in)
java.lang.String	toString()
void	writeExternal(java.io.ObjectOutput out)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

referencedColumns

private int[] referencedColumns

This class implements Formatable. That means that it can write itself to and from a formatted stream. If you add more fields to this class, make sure that you also write/read them with the writeExternal()/readExternal() methods. If, inbetween releases, you add more fields to this class, then you should bump the version number emitted by the getTypeFormatId() method.

Constructor Detail

ReferencedColumnsDescriptorImpl

public ReferencedColumnsDescriptorImpl(int[] referencedColumns)

Constructor for an ReferencedColumnsDescriptorImpl

Parameters:

referencedColumns - The array of referenced columns.

ReferencedColumnsDescriptorImpl

public ReferencedColumnsDescriptorImpl()

Zero-argument constructor for Formatable interface

Method Detail

getReferencedColumnPositions

public int[] getReferencedColumnPositions()

Description copied from interface: ReferencedColumns

Returns an array of 1-based column positions in the table that the check constraint is on.

Specified by:

getReferencedColumnPositions in interface ReferencedColumns

Returns:

An array of ints representing the 1-based column positions of the columns that are referenced in this check constraint.

See Also:

ReferencedColumns.getReferencedColumnPositions()

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException

Specified by:

readExternal in interface java.io.Externalizable

Throws:

java.io.IOException - Thrown on read error

See Also:

Externalizable.readExternal(java.io.ObjectInput)

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Specified by:

writeExternal in interface java.io.Externalizable

Throws:

java.io.IOException - Thrown on write error

See Also:

Externalizable.writeExternal(java.io.ObjectOutput)

getTypeFormatId

public int getTypeFormatId()

Description copied from interface: TypedFormat

Get a universally unique identifier for the type of this object.

Specified by:

getTypeFormatId in interface TypedFormat

Returns:

The identifier. (A UUID stuffed in an array of 16 bytes).

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

See Also:

Object.toString()