com.mxgraph.io

Class mxChildChangeCodec

java.lang.Object

com.mxgraph.io.mxObjectCodec

com.mxgraph.io.mxChildChangeCodec

public class mxChildChangeCodec
extends mxObjectCodec

Codec for mxChildChanges. This class is created and registered dynamically at load time and used implicitely via mxCodec and the mxCodecRegistry.

Field Summary

Fields inherited from class com.mxgraph.io.mxObjectCodec

accessors, exclude, fields, idrefs, mapping, reverse, template

Constructor Summary

Constructors

Constructor and Description
mxChildChangeCodec() Constructs a new model codec.
mxChildChangeCodec(Object template, String[] exclude, String[] idrefs, Map<String,String> mapping) Constructs a new model codec for the given arguments.

Method Summary

Modifier and Type	Method and Description
Object	afterDecode(mxCodec dec, Node node, Object obj) Hook for subclassers to post-process the object after decoding.
Node	afterEncode(mxCodec enc, Object obj, Node node) Hook for subclassers to post-process the node for the given object after encoding and return the post-processed node.
Node	beforeDecode(mxCodec dec, Node node, Object into) Reads the cells into the graph model.
boolean	isReference(Object obj, String attr, Object value, boolean isWrite) Returns true if the given fieldname is to be treated as a textual reference (ID).

Methods inherited from class com.mxgraph.io.mxObjectCodec

addObjectValue, beforeEncode, cloneTemplate, convertValueFromXml, convertValueToXml, decode, decode, decodeAttribute, decodeAttributes, decodeChild, decodeChildren, decodeNode, encode, encodeElements, encodeFields, encodeObject, encodeValue, getAccessor, getAttributeName, getField, getFieldName, getFieldTemplate, getFieldValue, getFieldValueWithAccessor, getMethod, getName, getTemplate, isExcluded, isPrimitiveValue, processInclude, setFieldValue, setFieldValueWithAccessor, writeAttribute, writeComplexAttribute, writePrimitiveAttribute

Methods inherited from class java.lang.Object

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

Constructor Detail

mxChildChangeCodec

public mxChildChangeCodec()

Constructs a new model codec.

mxChildChangeCodec

public mxChildChangeCodec(Object template,
                          String[] exclude,
                          String[] idrefs,
                          Map<String,String> mapping)

Constructs a new model codec for the given arguments.

Method Detail

isReference

public boolean isReference(Object obj,
                           String attr,
                           Object value,
                           boolean isWrite)

Description copied from class: mxObjectCodec

Returns true if the given fieldname is to be treated as a textual reference (ID). This implementation returns true if the given fieldname is in mxObjectCodec.idrefs.

Overrides:

isReference in class mxObjectCodec

Parameters:

obj - Object instance that contains the field.

attr - Fieldname of the field.

value - Value of the field.

isWrite - Boolean indicating if the field is being encoded or decoded. isWrite is true if the field is being encoded, else it is being decoded.

Returns:

Returns true if the given attribute should be handled as a reference.

afterEncode

public Node afterEncode(mxCodec enc,
                        Object obj,
                        Node node)

Description copied from class: mxObjectCodec

Hook for subclassers to post-process the node for the given object after encoding and return the post-processed node. This implementation returns the input node. The return value of this method is returned to the encoder from . Parameters:

Overrides:

afterEncode in class mxObjectCodec

Parameters:

enc - Codec that controls the encoding process.

obj - Object to be encoded.

node - XML node that represents the default encoding.

Returns:

Returns the resulting node of the encoding.

beforeDecode

public Node beforeDecode(mxCodec dec,
                         Node node,
                         Object into)

Reads the cells into the graph model. All cells are children of the root element in the node.

Overrides:

beforeDecode in class mxObjectCodec

Parameters:

dec - Codec that controls the decoding process.

node - XML node to be decoded.

into - Object to encode the node into.

Returns:

Returns the node used for the default decoding.

afterDecode

public Object afterDecode(mxCodec dec,
                          Node node,
                          Object obj)

Description copied from class: mxObjectCodec

Hook for subclassers to post-process the object after decoding. This implementation returns the given object without any changes. The return value of this method is returned to the decoder from mxObjectCodec.decode(mxCodec, Node).

Overrides:

afterDecode in class mxObjectCodec

Parameters:

dec - Codec that controls the decoding process.

node - XML node to be decoded.

obj - Object that represents the default decoding.

Returns:

Returns the result of the decoding process.