com.bigdata.bop

Class ImmutableBOp

java.lang.Object

com.bigdata.bop.CoreBaseBOp

com.bigdata.bop.BOpBase

com.bigdata.bop.ImmutableBOp

All Implemented Interfaces:

BOp, IPropertySet, Serializable, Cloneable

Direct Known Subclasses:

AggregateBase, Bind, ConditionalBind, Constant, FunctionRegistry.UnknownFunctionBOp, Var

public abstract class ImmutableBOp
extends BOpBase

Base class for immutable operators such as Var and Constant. These operators do not deep copy their data and do not permit decoration with annotations.

Version:

$Id$

Author:

Bryan Thompson

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.bigdata.bop.BOp

BOp.Annotations

Field Summary

Fields inherited from class com.bigdata.bop.CoreBaseBOp

DEFAULT_INITIAL_CAPACITY

Fields inherited from interface com.bigdata.bop.BOp

NOANNS, NOARGS

Constructor Summary

Constructors

Constructor and Description
ImmutableBOp(BOp[] args, Map<String,Object> annotations)
ImmutableBOp(ImmutableBOp op)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	_clearProperty(String name) Clear an annotation.
protected Object	_setProperty(String name, Object value) Set an annotation.

Methods inherited from class com.bigdata.bop.BOpBase

__replaceArg, _set, annotations, annotationsCopy, annotationsEqual, annotationsRef, argIterator, args, argsCopy, arity, clearAnnotations, clearProperty, deepCopy, deepCopy, get, getProperty, setArg, setProperty, setUnboundProperty, toArray, toArray

Methods inherited from class com.bigdata.bop.CoreBaseBOp

annotationsEqual, annotationsToString, annotationsToString, annotationValueToString, checkArgs, clone, equals, getEvaluationContext, getId, getProperty, getRequiredProperty, hashCode, indent, isController, mutation, shortenName, toShortString, toString, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ImmutableBOp

public ImmutableBOp(ImmutableBOp op)

Parameters:

op -

ImmutableBOp

public ImmutableBOp(BOp[] args,
            Map<String,Object> annotations)

Parameters:

args -

annotations -

Method Detail

_setProperty

protected final Object _setProperty(String name,
                  Object value)

Description copied from class: BOpBase

Set an annotation.

Note: This is protected to facilitate copy-on-write patterns. It is not public to prevent arbitrary changes to operators outside of methods which clone the operator and return the modified version. This is part of the effectively immutable contract for BOps.

Overrides:

_setProperty in class BOpBase

Parameters:

name - The name.

value - The value.

Returns:

The old value.

_clearProperty

protected final void _clearProperty(String name)

Description copied from class: BOpBase

Clear an annotation.

Note: This is protected to facilitate copy-on-write patterns. It is not public to prevent arbitrary changes to operators outside of methods which clone the operator and return the modified version. This is part of the effectively immutable contract for BOps.

Overrides:

_clearProperty in class BOpBase

Parameters:

name - The name.