Package com.cedarsoftware.util

Class GraphComparator.Delta

java.lang.Object

com.cedarsoftware.util.GraphComparator.Delta

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

GraphComparator.DeltaError

Enclosing class:

GraphComparator

public static class GraphComparator.Delta
extends Object
implements Serializable

Represents a single difference between two object graphs. A collection of Delta instances can be used to transform one graph so that it matches another.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	GraphComparator.Delta.Command	These are all possible Delta.Commands that are generated when performing the graph comparison.

Constructor Summary

Constructors

Constructor	Description
Delta(Object id, String fieldName, String srcPtr, Object srcValue, Object targetValue, Object optKey)	Construct a delta describing a change between two graphs.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object other)
GraphComparator.Delta.Command	getCmd()
String	getFieldName()
Object	getId()
Object	getOptionalKey()
Object	getSourceValue()
Object	getTargetValue()
int	hashCode()
void	setCmd(GraphComparator.Delta.Command cmd)
void	setFieldName(String fieldName)	Set the name of the field where the difference occurred.
void	setId(Object id)	Update the identifier associated with this delta.
void	setOptionalKey(Object optionalKey)
void	setSourceValue(Object srcValue)
void	setTargetValue(Object targetValue)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

Delta

public Delta(Object id,
 String fieldName,
 String srcPtr,
 Object srcValue,
 Object targetValue,
 Object optKey)

Construct a delta describing a change between two graphs.

Parameters:

id - identifier of the object containing the difference

fieldName - name of the field that differs

srcPtr - pointer within the source graph

srcValue - value from the source graph

targetValue - value from the target graph

optKey - optional key used by certain collection operations

Method Details

getId

public Object getId()

Returns:

identifier of the object containing the change

setId

public void setId(Object id)

Update the identifier associated with this delta.

getFieldName

public String getFieldName()

Returns:

the name of the field where the difference occurred

setFieldName

public void setFieldName(String fieldName)

Set the name of the field where the difference occurred.

Parameters:

fieldName - name of the differing field

getSourceValue

public Object getSourceValue()

Returns:

value from the source graph

setSourceValue

public void setSourceValue(Object srcValue)

getTargetValue

public Object getTargetValue()

Returns:

value from the target graph

setTargetValue

public void setTargetValue(Object targetValue)

getOptionalKey

public Object getOptionalKey()

Returns:

optional key used for collection operations

setOptionalKey

public void setOptionalKey(Object optionalKey)

getCmd

public GraphComparator.Delta.Command getCmd()

Returns:

command describing the modification type

setCmd

public void setCmd(GraphComparator.Delta.Command cmd)

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object