net.sf.jso.sql
Class ColumnDescriptor

java.lang.Object
  net.sf.jso.sql.ColumnDescriptor

All Implemented Interfaces:

java.io.Serializable

public class ColumnDescriptor

extends java.lang.Object

implements java.io.Serializable

Class for column descritptors. Column descriptors represent columns of a table in a relational database.

See Also:

Serialized Form

Constructor Summary

ColumnDescriptor()
Constructs the column descriptor.

ColumnDescriptor(java.lang.String aName, int aType)
Constructs a nullable column descriptor.

ColumnDescriptor(java.lang.String aName, int aType, boolean isNullable)
Constructs a column descriptor.

Method Summary

boolean	equals(java.lang.Object o) Indicates whether some other column descriptor is "equal to" this one.
java.lang.String	getName() Gets column's name.
int	getType() Gets column's type.
int	hashCode() Returns a hash code value for the column descriptor.
boolean	isNullable()
void	setName(java.lang.String aName) Sets column's name.
void	setNullable(boolean isNullable)
void	setType(int aType) Sets column's type.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ColumnDescriptor

public ColumnDescriptor()

Constructs the column descriptor.

ColumnDescriptor

public ColumnDescriptor(java.lang.String aName,
                        int aType)
                 throws java.lang.IllegalArgumentException

Constructs a nullable column descriptor.

Parameters:

aName - A name for the column.

aType - A type for the column.

ColumnDescriptor

public ColumnDescriptor(java.lang.String aName,
                        int aType,
                        boolean isNullable)
                 throws java.lang.IllegalArgumentException

Constructs a column descriptor.

Parameters:

aName - A name for the column.

aType - A type for the column.

isNullable - Indicates if the column is nullable.

Method Detail

setName

public void setName(java.lang.String aName)

Sets column's name.

Parameters:

aName - A name for the column.

getName

public java.lang.String getName()

Gets column's name.

Returns:

column's name.

setType

public void setType(int aType)
             throws java.lang.IllegalArgumentException

Sets column's type.

Parameters:

aType - A type for the column. Only the following SQL types are allowed:

• BIGINT
• BOOLEAN
• CHAR
• DATE
• DOUBLE
• FLOAT
• INTEGER
• LONGVARCHAR
• NULL
• SMALLINT
• TIME
• TIMESTAMP
• TINYINT
• VARCHAR

Throws:

java.lang.IllegalArgumentException

getType

public int getType()

Gets column's type.

Returns:

column's type.

setNullable

public void setNullable(boolean isNullable)

isNullable

public boolean isNullable()

equals

public boolean equals(java.lang.Object o)

Indicates whether some other column descriptor is "equal to" this one.

Parameters:

o - The object with which to compare.

Returns:

true if the column descriptor is the same as the column descriptor argument; false otherwise.

hashCode

public int hashCode()

Returns a hash code value for the column descriptor.

Returns:

A hash code value for the column descriptor.