Package org.apache.geode.pdx

Interface WritablePdxInstance

All Superinterfaces:

PdxInstance, Serializable

public interface WritablePdxInstance
extends PdxInstance

WritablePdxInstance is a PdxInstance that also supports field modification using the setField method. To get a WritablePdxInstance call createWriter.

Since:

GemFire 6.6

Method Summary

Modifier and Type	Method	Description
void	setField(String fieldName, Object value)	Set the existing named field to the given value.

Methods inherited from interface org.apache.geode.pdx.PdxInstance

createWriter, equals, getClassName, getField, getFieldNames, getObject, hasField, hashCode, isDeserializable, isEnum, isIdentityField, toString

Method Details

setField

void setField(String fieldName,
 Object value)

Set the existing named field to the given value. The setField method has copy-on-write semantics. So for the modifications to be stored in the cache the WritablePdxInstance must be put into a region after setField has been called one or more times.

Parameters:

fieldName - name of the field whose value will be set

value - value that will be assigned to the field

Throws:

PdxFieldDoesNotExistException - if the named field does not exist

PdxFieldTypeMismatchException - if the type of the value is not compatible with the field