net.sf.eBus.messages.type

Class EnumType

java.lang.Object

net.sf.eBus.messages.type.DataType

net.sf.eBus.messages.type.EnumType

All Implemented Interfaces:

Comparable<DataType>

public final class EnumType
extends DataType

Provides binary serialization/de-serialization of java.lang.Enum instances.

Author:

Charles Rapp

Field Summary

Fields

Modifier and Type	Field and Description
static int	BYTES An enum requires 2 bytes for encoding.

Fields inherited from class net.sf.eBus.messages.type.DataType

ADDRESS_TYPE, ARRAY_SUFFIX, CHARSET, CLASS_TYPE, EMPTY_STRING, FIELD_MASK_SIZE, INDENT, INDENT1, KEY_TYPE, MAX_ARRAY_SIZE, MAX_FIELDS, MAX_FILE_NAME_LENGTH, MAX_STRING_LENGTH, mBuiltinFlag, mClass, mDefaultValue, mSize, sClasses, sCompiledClasses, STRING_TYPE, VARIABLE_SIZE

Method Summary

Modifier and Type	Method and Description
protected void	createDeserializer(MessageType.MessageField field, String fieldName, String indent, Formatter output, boolean useBuilder) Generates the code to de-serialize the enum instance from a ByteBuffer based on the enum ordinal value.
protected void	createSerializer(MessageType.MessageField field, String fieldName, String indent, Formatter output) Adds the Java code used to serialize the enum ordinal value to a ByteBuffer.
Object	deserialize(ByteBuffer buffer) Returns the deserialized Enum in buffer.
boolean	isInstance(Object o) Returns true if o is a non-null enum instance and false otherwise.
void	serialize(Object o, ByteBuffer buffer) Serializes this Enum ordinal to the given buffer.

Methods inherited from class net.sf.eBus.messages.type.DataType

compareTo, dataClass, dataClassName, defaultValue, equals, fields, findCharset, findType, hashCode, isArray, isBuiltin, isEnum, isLocalOnly, isMessage, isPrimitive, replyClasses, size, toString

Methods inherited from class java.lang.Object

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

Field Detail

BYTES

public static final int BYTES

An enum requires 2 bytes for encoding.

See Also:

Constant Field Values

Method Detail

isInstance

public boolean isInstance(Object o)

Returns true if o is a non-null enum instance and false otherwise.

Overrides:

isInstance in class DataType

Parameters:

o - Check this object's type.

Returns:

true if o is a non-null enum instance and false otherwise.

serialize

public void serialize(Object o,
                      ByteBuffer buffer)
               throws BufferOverflowException

Serializes this Enum ordinal to the given buffer.

Specified by:

serialize in class DataType

Parameters:

o - A Enum object.

buffer - serialize to this buffer.

Throws:

BufferOverflowException - if buffer overflows.

See Also:

deserialize(ByteBuffer)

deserialize

public Object deserialize(ByteBuffer buffer)
                   throws BufferUnderflowException

Returns the deserialized Enum in buffer.

Specified by:

deserialize in class DataType

Parameters:

buffer - Deserialize the Enum object from this ByteBuffer.

Returns:

the deserialized Enum.

Throws:

BufferUnderflowException - if buffer contains an incomplete serialized enum.

See Also:

serialize(Object, ByteBuffer)

createSerializer

protected void createSerializer(MessageType.MessageField field,
                                String fieldName,
                                String indent,
                                Formatter output)

Adds the Java code used to serialize the enum ordinal value to a ByteBuffer.

Specified by:

createSerializer in class DataType

Parameters:

field - message field.

fieldName - the message field name.

indent - indent the code by this amount.

output - write the code to this formatter.

createDeserializer

protected void createDeserializer(MessageType.MessageField field,
                                  String fieldName,
                                  String indent,
                                  Formatter output,
                                  boolean useBuilder)

Generates the code to de-serialize the enum instance from a ByteBuffer based on the enum ordinal value.

Specified by:

createDeserializer in class DataType

Parameters:

field - message field.

fieldName - store the de-serialized field in this name.

indent - indent the code by this amount.

output - append the code to this formatter.

useBuilder - if true then fieldName is a builder method name; otherwise a local variable.