com.devexperts.qd.kit

Class MarshalledObjField

java.lang.Object

com.devexperts.qd.kit.AbstractDataField

com.devexperts.qd.kit.AbstractDataObjField

com.devexperts.qd.kit.MarshalledObjField

All Implemented Interfaces:

DataField, DataObjField

public class MarshalledObjField
extends AbstractDataObjField

The MarshalledObjField represents an object field with plain Java serialized form. After reading from DataInput the object is stored in Marshalled class, so that [slow] deseralization can be perfromed only when needed. It uses standard Java object serialization. Note that this serialization is highly ineffective and shall be substituted with more effective specialized version. It is recommended to use ByteArrayField with custom serialization whenever possible.

Whenever the code is written to work with this field type, one should use Marshalled.unwrap(java.lang.Object) to correctly handle the case of the naked object being received locally from the same JVM and Marshalled that was received from somewhere else.

Constructor Summary

Constructors

Constructor and Description
MarshalledObjField(int index, String name)

Method Summary

Modifier and Type	Method and Description
Object	parseString(String value) Parses string representation of specified field value.
Object	readObj(com.devexperts.io.BufferedInput in) Reads field value from specified data input and returns it to the caller.
Object	readObj(DataInput in) Reads field value from specified data input and returns it to the caller.
String	toString(Object value) Returns string representation of the specified field value.
void	writeObj(com.devexperts.io.BufferedOutput out, Object value) Writes specified field value into specified buffered output.
void	writeObj(DataOutput out, Object value) Writes specified field value into specified data output.

Methods inherited from class com.devexperts.qd.kit.AbstractDataObjField

equals, getString, read, setString, write

Methods inherited from class com.devexperts.qd.kit.AbstractDataField

getDefaultPropertyName, getIndex, getLocalName, getName, getPropertyName, getRecord, getSerialType, setRecord, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.devexperts.qd.DataField

getIndex, getLocalName, getName, getPropertyName, getRecord, getSerialType

Constructor Detail

MarshalledObjField

public MarshalledObjField(int index,
                          String name)

Method Detail

writeObj

public final void writeObj(DataOutput out,
                           Object value)
                    throws IOException

Description copied from interface: DataObjField

Writes specified field value into specified data output.

Throws:

IOException - as specified data output does.

writeObj

public final void writeObj(com.devexperts.io.BufferedOutput out,
                           Object value)
                    throws IOException

Description copied from interface: DataObjField

Writes specified field value into specified buffered output.

Throws:

IOException - as specified data output does.

readObj

public final Object readObj(DataInput in)
                     throws IOException

Description copied from interface: DataObjField

Reads field value from specified data input and returns it to the caller.

Throws:

IOException - as specified data input does.

readObj

public final Object readObj(com.devexperts.io.BufferedInput in)
                     throws IOException

Description copied from interface: DataObjField

Reads field value from specified data input and returns it to the caller.

Throws:

IOException - as specified data input does.

toString

public String toString(Object value)

Description copied from class: AbstractDataObjField

Returns string representation of the specified field value. This method is used for debugging purposes. This implementation returns String.valueOf(value).

Specified by:

toString in interface DataObjField

Overrides:

toString in class AbstractDataObjField

parseString

public Object parseString(String value)

Description copied from class: AbstractDataObjField

Parses string representation of specified field value. This method is used for debugging purposes. This implementation returns value.

Specified by:

parseString in interface DataObjField

Overrides:

parseString in class AbstractDataObjField