Class PatchOperation

java.lang.Object

org.springframework.data.rest.webmvc.json.patch.PatchOperation

public abstract class PatchOperation
extends Object

Abstract base class representing and providing support methods for patch operations.

Author:

Craig Walls, Mathias Düsterhöft, Oliver Gierke

Field Summary

Fields

Modifier and Type	Field	Description
protected final String	op
protected final org.springframework.data.rest.webmvc.json.patch.SpelPath.UntypedSpelPath	path
protected final @Nullable Object	value

Constructor Summary

Constructors

Modifier	Constructor	Description
	PatchOperation(String op, org.springframework.data.rest.webmvc.json.patch.SpelPath.UntypedSpelPath path)	Constructs the operation.
protected	PatchOperation(String op, org.springframework.data.rest.webmvc.json.patch.SpelPath.UntypedSpelPath path, @Nullable Object value)

Method Summary

Modifier and Type	Method	Description
protected final @Nullable Object	evaluate(Class<?> type)
protected @Nullable Object	evaluateValueFromTarget(Object targetObject, Class<?> entityType, BindContext context)	Performs late-value evaluation on the operation value if the value is a LateObjectEvaluator.

Methods inherited from class java.lang.Object

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

Field Details

op

protected final String op

path

protected final org.springframework.data.rest.webmvc.json.patch.SpelPath.UntypedSpelPath path

value

protected final @Nullable Object value

Constructor Details

PatchOperation

public PatchOperation(String op,
 org.springframework.data.rest.webmvc.json.patch.SpelPath.UntypedSpelPath path)

Constructs the operation.

Parameters:

op - the operation name. (e.g., 'move')

path - the path to perform the operation on. (e.g., '/1/description')

PatchOperation

protected PatchOperation(String op,
 org.springframework.data.rest.webmvc.json.patch.SpelPath.UntypedSpelPath path,
 @Nullable Object value)

Method Details

evaluateValueFromTarget

protected @Nullable Object evaluateValueFromTarget(Object targetObject,
 Class<?> entityType,
 BindContext context)

Performs late-value evaluation on the operation value if the value is a LateObjectEvaluator.

Parameters:

targetObject - the target object, used as assistance in determining the evaluated object's type.

entityType - the entityType

Returns:

the result of late-value evaluation if the value is a LateObjectEvaluator; the value itself otherwise.

evaluate

protected final @Nullable Object evaluate(Class<?> type)