de.must.dataobj

Class Index

java.lang.Object

de.must.dataobj.Index

public class Index
extends java.lang.Object

Index to define database indices.

See Also:

DataObject

Field Summary

Fields

Modifier and Type	Field and Description
static int	DUPLICATES
static int	UNIQUE

Constructor Summary

Constructors

Constructor and Description
Index(IndexItem[] indexItems, int occurrence) Constructs a new index definition with the specified item array and occurence.

Method Summary

Modifier and Type	Method and Description
IndexItem[]	getIndexItems() Return the index items.
int	getOccurrence() Returns the occurrence.
boolean	isUnique() Checks if index is unique.

Methods inherited from class java.lang.Object

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

Field Detail

DUPLICATES

public static final int DUPLICATES

See Also:

Constant Field Values

UNIQUE

public static final int UNIQUE

See Also:

Constant Field Values

Constructor Detail

Index

public Index(IndexItem[] indexItems,
             int occurrence)

Constructs a new index definition with the specified item array and occurence.

Parameters:

indexItems - the index items to be used

occurrence - indicates DUPLICATES or UNIQUE occurence

Method Detail

isUnique

public boolean isUnique()

Checks if index is unique.

Returns:

true if index is unique

getIndexItems

public IndexItem[] getIndexItems()

Return the index items.

Returns:

index items

getOccurrence

public int getOccurrence()

Returns the occurrence.

Returns:

the occurrence which may be DUPLICATES or UNIQUE