org.apache.derby.impl.sql.execute

Class ColumnInfo

java.lang.Object

org.apache.derby.impl.sql.execute.ColumnInfo

All Implemented Interfaces:

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

public class ColumnInfo
extends java.lang.Object
implements Formatable

This is the Column descriptor that is passed from Compilation to Execution for CREATE TABLE statements.

Version:

0.1

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
int	action This class implements Formatable.
long	autoinc_create_or_modify_Start_Increment
long	autoincInc
long	autoincStart
static int	CREATE
DataTypeDescriptor	dataType
DefaultInfo	defaultInfo
DataValueDescriptor	defaultValue
static int	DROP
static int	MODIFY_COLUMN_CONSTRAINT
static int	MODIFY_COLUMN_CONSTRAINT_NOT_NULL
static int	MODIFY_COLUMN_DEFAULT_INCREMENT
static int	MODIFY_COLUMN_DEFAULT_RESTART
static int	MODIFY_COLUMN_DEFAULT_VALUE
static int	MODIFY_COLUMN_TYPE
java.lang.String	name
UUID	newDefaultUUID
UUID	oldDefaultUUID
ProviderInfo[]	providers

Constructor Summary

Constructors

Constructor and Description
ColumnInfo() Public niladic constructor.
ColumnInfo(java.lang.String name, DataTypeDescriptor dataType, DataValueDescriptor defaultValue, DefaultInfo defaultInfo, ProviderInfo[] providers, UUID newDefaultUUID, UUID oldDefaultUUID, int action, long autoincStart, long autoincInc, long autoinc_create_or_modify_Start_Increment) Make one of these puppies.

Method Summary

Methods

Modifier and Type	Method and Description
int	getTypeFormatId() Get the formatID which corresponds to this class.
void	readExternal(java.io.ObjectInput in) Read this object from a stream of stored objects.
java.lang.String	toString()
void	writeExternal(java.io.ObjectOutput out) Write this object to a stream of stored objects.

Methods inherited from class java.lang.Object

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

Field Detail

action

public int action

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.

name

public java.lang.String name

dataType

public DataTypeDescriptor dataType

defaultInfo

public DefaultInfo defaultInfo

providers

public ProviderInfo[] providers

defaultValue

public DataValueDescriptor defaultValue

newDefaultUUID

public UUID newDefaultUUID

oldDefaultUUID

public UUID oldDefaultUUID

autoincStart

public long autoincStart

autoincInc

public long autoincInc

autoinc_create_or_modify_Start_Increment

public long autoinc_create_or_modify_Start_Increment

CREATE

public static final int CREATE

See Also:

Constant Field Values

DROP

public static final int DROP

See Also:

Constant Field Values

MODIFY_COLUMN_TYPE

public static final int MODIFY_COLUMN_TYPE

See Also:

Constant Field Values

MODIFY_COLUMN_CONSTRAINT

public static final int MODIFY_COLUMN_CONSTRAINT

See Also:

Constant Field Values

MODIFY_COLUMN_CONSTRAINT_NOT_NULL

public static final int MODIFY_COLUMN_CONSTRAINT_NOT_NULL

See Also:

Constant Field Values

MODIFY_COLUMN_DEFAULT_RESTART

public static final int MODIFY_COLUMN_DEFAULT_RESTART

See Also:

Constant Field Values

MODIFY_COLUMN_DEFAULT_INCREMENT

public static final int MODIFY_COLUMN_DEFAULT_INCREMENT

See Also:

Constant Field Values

MODIFY_COLUMN_DEFAULT_VALUE

public static final int MODIFY_COLUMN_DEFAULT_VALUE

See Also:

Constant Field Values

Constructor Detail

ColumnInfo

public ColumnInfo()

Public niladic constructor. Needed for Formatable interface to work.

ColumnInfo

public ColumnInfo(java.lang.String name,
          DataTypeDescriptor dataType,
          DataValueDescriptor defaultValue,
          DefaultInfo defaultInfo,
          ProviderInfo[] providers,
          UUID newDefaultUUID,
          UUID oldDefaultUUID,
          int action,
          long autoincStart,
          long autoincInc,
          long autoinc_create_or_modify_Start_Increment)

Make one of these puppies.

Parameters:

name - Column name.

dataType - Column type.

defaultValue - Column default value.

defaultInfo - Column default info.

providers - Array of providers that this column depends on.

newDefaultUUID - New UUID for default.

oldDefaultUUID - Old UUID for default.

action - Action (create, modify default, etc.)

autoincStart - Start of autoincrement values.

autoincInc - Increment of autoincrement values-- if parameter is 0, it implies that this is not an autoincrement value.

Method Detail

readExternal

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

Read this object from a stream of stored objects.

Specified by:

readExternal in interface java.io.Externalizable

Parameters:

in - read this.

Throws:

java.io.IOException - thrown on error

java.lang.ClassNotFoundException - thrown on error

writeExternal

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

Write this object to a stream of stored objects.

Specified by:

writeExternal in interface java.io.Externalizable

Parameters:

out - write bytes here.

Throws:

java.io.IOException - thrown on error

getTypeFormatId

public int getTypeFormatId()

Get the formatID which corresponds to this class.

Specified by:

getTypeFormatId in interface TypedFormat

Returns:

the formatID of this class

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object