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.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	CREATE
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

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

Modifier and Type	Method and Description
DataTypeDescriptor	getDataType()
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

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

CREATE

public static final int CREATE

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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

getDataType

public DataTypeDescriptor getDataType()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object