com.goldencode.p2j.persist.orm.schema.element

Class Attribute

java.lang.Object

com.goldencode.p2j.persist.orm.schema.element.Element

com.goldencode.p2j.persist.orm.schema.element.Attribute

public class Attribute
extends Element

Column representation for database schema storage and comparison.

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	defaultValue Default value for the column.
private int	extent EXTENT property of the column.
private boolean	nullable Is nullable?
private java.lang.String	precision String representation of column type's precision.
private java.lang.String	type String representation of column type.

Constructor Summary

Constructors

Constructor and Description
Attribute(java.lang.String name, Table table, java.lang.String type, java.lang.String precision, boolean nullable, java.lang.String defaultValue, int extent, java.lang.String comment) Default constructor.

Method Summary

Modifier and Type	Method and Description
java.lang.String	getDefaultValue() Getter for defaultValue.
int	getExtent() Getter for EXTENT property.
boolean	getNullable() Getter for nullable.
java.lang.String	getPrecision() Getter for precision.
java.lang.String	getType() Getter for type.
boolean	isPrimaryKey() Decides whether the column is a part of surrogate primary key.

Methods inherited from class com.goldencode.p2j.persist.orm.schema.element.Element

equals, getComment, getName, getTable, hashCode

Methods inherited from class java.lang.Object

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

Field Detail

type

private final java.lang.String type

String representation of column type.

precision

private final java.lang.String precision

String representation of column type's precision. Should be null/empty or contain a number of decimals. Although, this is vendor-specific, so may contain various strings.

nullable

private final boolean nullable

Is nullable?

defaultValue

private final java.lang.String defaultValue

Default value for the column.

extent

private final int extent

EXTENT property of the column. This is handled separately (it's stored in a separate table), so requires extra processing once all tables' information is loaded.

Constructor Detail

Attribute

public Attribute(java.lang.String name,
                 Table table,
                 java.lang.String type,
                 java.lang.String precision,
                 boolean nullable,
                 java.lang.String defaultValue,
                 int extent,
                 java.lang.String comment)

Default constructor.

Parameters:

name - Most basic property of any element - its name

table - Table containing the column (parent)

type - String representation of column type

precision - String representation of column type's precision

nullable - Is nullable?

defaultValue - Default value for the column

extent - EXTENT property of the column

comment - Comment for the column

Method Detail

getType

public java.lang.String getType()

Getter for type.

Returns:

String representation of column type

getPrecision

public java.lang.String getPrecision()

Getter for precision.

Returns:

String representation of column type's precision

getNullable

public boolean getNullable()

Getter for nullable.

Returns:

Is nullable?

getDefaultValue

public java.lang.String getDefaultValue()

Getter for defaultValue.

Returns:

Default value for the column

getExtent

public int getExtent()

Getter for EXTENT property.

isPrimaryKey

public boolean isPrimaryKey()

Decides whether the column is a part of surrogate primary key. This is important so that surrogate columns are not exposed to the end user.

Returns:

TRUE if column is a part of surrogate primary key