Package org.alfresco.util.schemacomp.model

Class Index

java.lang.Object

org.alfresco.util.schemacomp.model.AbstractDbObject

org.alfresco.util.schemacomp.model.Index

All Implemented Interfaces:

DbObject

public class Index
extends AbstractDbObject

Represents an index on a table.

Author:

Matt Ward

Field Summary

Fields inherited from class org.alfresco.util.schemacomp.model.AbstractDbObject

comparisonUtils

Constructor Summary

Constructors

Constructor	Description
Index(java.lang.String name)
Index(Table table, java.lang.String name, java.util.List<java.lang.String> columnNames)

Method Summary

Modifier and Type	Method	Description
void	accept(DbObjectVisitor visitor)	Allows a visitor to be invoked against this DbObject.
protected void	doDiff(DbObject right, DiffContext ctx)	Override this method to provide subclass specific diffing logic.
boolean	equals(java.lang.Object obj)
java.util.List<java.lang.String>	getColumnNames()
int	hashCode()
boolean	isUnique()	Does this index have the unique attribute?
boolean	sameAs(DbObject o)	Are the two DbObjects logically the same? For example two Index objects may have different names, but are the same index as they both index the same columns for the same table.
void	setColumnNames(java.util.List<java.lang.String> columnNames)
void	setUnique(boolean unique)

Methods inherited from class org.alfresco.util.schemacomp.model.AbstractDbObject

diff, getName, getParent, getTypeName, getValidators, hasObjectLevelValidator, hasValidators, setComparisonUtils, setName, setParent, setValidators, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Index

public Index(java.lang.String name)

Index

public Index(Table table,
             java.lang.String name,
             java.util.List<java.lang.String> columnNames)

Parameters:

table - the parent table

Method Detail

getColumnNames

public java.util.List<java.lang.String> getColumnNames()

Returns:

the columnNames

setColumnNames

public void setColumnNames(java.util.List<java.lang.String> columnNames)

Parameters:

columnNames - the columnNames to set

isUnique

public boolean isUnique()

Does this index have the unique attribute?

Returns:

unique

setUnique

public void setUnique(boolean unique)

Parameters:

unique - boolean

See Also:

isUnique()

hashCode

public int hashCode()

Overrides:

hashCode in class AbstractDbObject

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class AbstractDbObject

sameAs

public boolean sameAs(DbObject o)

Description copied from interface: DbObject

Are the two DbObjects logically the same? For example two Index objects may have different names, but are the same index as they both index the same columns for the same table.

If two objects a and b have the same logical identity, it does not mean that a.equals(b) == true. The two objects may well have differences and will be flagged as such by the schema comparison tool. When a.sameAs(b) == true it makes it easier to show the differences as related, i.e. a and b are different rather than, a is only in the 'left' tree and b is only in the 'right' tree.

Specified by:

sameAs in interface DbObject

Overrides:

sameAs in class AbstractDbObject

Parameters:

o - DbObject

Returns:

boolean

doDiff

protected void doDiff(DbObject right,
                      DiffContext ctx)

Description copied from class: AbstractDbObject

Override this method to provide subclass specific diffing logic.

Overrides:

doDiff in class AbstractDbObject

Parameters:

right - DbObject

ctx - DiffContext

accept

public void accept(DbObjectVisitor visitor)

Description copied from interface: DbObject

Allows a visitor to be invoked against this DbObject. Implementations should ensure that child objects are visited first (by calling accept on them) before invoking the visitor on itself.

Parameters:

visitor - DbObjectVisitor