edu.vub.at.objects.natives
Class NATStripe

java.lang.Object
  edu.vub.at.objects.natives.NATNil
      edu.vub.at.objects.natives.NATByCopy
          edu.vub.at.objects.natives.NATStripe

All Implemented Interfaces:

ATAbstractGrammar, ATConversions, ATExpression, ATNil, ATObject, ATStatement, ATStripe, java.io.Serializable

Direct Known Subclasses:

NATStripe.OBJRootStripe

public class NATStripe

extends NATByCopy

implements ATStripe

The native implementation of AmbientTalk stripe objects.

Author:

tvcutsem

See Also:

Serialized Form

Nested Class Summary

static class

NATStripe.OBJRootStripe The root stripe of the stripe hierarchy: every stripe eventually has this stripe as its parent.

Field Summary

private ATTable	parentStripes_
private ATSymbol	stripeName_

Fields inherited from class edu.vub.at.objects.natives.NATNil

_INSTANCE_

Constructor Summary

protected

NATStripe(ATSymbol stripeName, ATTable parentStripes) The constructor is declared protected such that it cannot be used externally, but can be used by the OBJRootStripe class to create a stripe with an empty parent table, which is normally not allowed.

Method Summary

static NATStripe	atValue(ATSymbol stripeName)
static NATStripe	atValue(ATSymbol stripeName, ATTable parentStripes) Stripes should not be created directly because it should be verified that their list of parent stripes is never empty.
static NATStripe	atValue(java.lang.String stripeName)
static NATStripe	atValue(java.lang.String stripeName, NATStripe singleParent)
ATStripe	base_asStripe()
ATTable	base_getParentStripes()
ATSymbol	base_getStripeName()
boolean	base_isStripe()
ATBoolean	base_isSubstripeOf(ATStripe superstripe) Native implementation of: def isSubstripeOf(superstripe) { (superstripe.name() == name).or: { (superstripes.find: { |sstripe| sstripe.isSubstripeOf(superstripe) }) !
boolean	equals(java.lang.Object other) Identity of stripes is based on their name
ATTable	meta_getStripes() Returns the stripes of this object.
NATText	meta_print() Prints out the object in a human-readable way.

Methods inherited from class edu.vub.at.objects.natives.NATByCopy

meta_pass, meta_resolve

Methods inherited from class edu.vub.at.objects.natives.NATNil

asAmbientTalkObject, asJavaClassUnderSymbiosis, asJavaObjectUnderSymbiosis, asNativeBoolean, asNativeException, asNativeFarReference, asNativeFraction, asNativeNumber, asNativeNumeric, asNativeTable, asNativeText, base__opeql__opeql_, base_asActorMirror, base_asAsyncMessage, base_asBegin, base_asBoolean, base_asClosure, base_asDefinition, base_asExpression, base_asFarReference, base_asField, base_asHandler, base_asMessage, base_asMessageCreation, base_asMethod, base_asMirror, base_asNumber, base_asSplice, base_asStatement, base_asSymbol, base_asTable, base_asUnquoteSplice, base_asVariableAssignment, base_init, base_isBoolean, base_isCallFrame, base_isClosure, base_isFarReference, base_isMessageCreation, base_isMethod, base_isMirror, base_isSplice, base_isSymbol, base_isTable, base_isUnquoteSplice, base_isVariableAssignment, base_new, createChild, isAmbientTalkObject, isJavaObjectUnderSymbiosis, isNativeBoolean, isNativeField, isNativeText, meta_addField, meta_addMethod, meta_assignField, meta_assignVariable, meta_clone, meta_defineField, meta_doesNotUnderstand, meta_eval, meta_extend, meta_getDynamicParent, meta_getLexicalParent, meta_grabField, meta_grabMethod, meta_invoke, meta_isCloneOf, meta_isRelatedTo, meta_isStripedWith, meta_listFields, meta_listMethods, meta_lookup, meta_newInstance, meta_quote, meta_receive, meta_respondsTo, meta_select, meta_send, meta_share, readResolve, toString, writeReplace

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.vub.at.objects.ATObject

base__opeql__opeql_, base_init, base_new, meta_addField, meta_addMethod, meta_assignField, meta_assignVariable, meta_clone, meta_defineField, meta_doesNotUnderstand, meta_eval, meta_extend, meta_getDynamicParent, meta_getLexicalParent, meta_grabField, meta_grabMethod, meta_invoke, meta_isCloneOf, meta_isRelatedTo, meta_isStripedWith, meta_listFields, meta_listMethods, meta_lookup, meta_newInstance, meta_pass, meta_quote, meta_receive, meta_resolve, meta_respondsTo, meta_select, meta_send, meta_share

Methods inherited from interface edu.vub.at.objects.coercion.ATConversions

asAmbientTalkObject, asJavaClassUnderSymbiosis, asJavaObjectUnderSymbiosis, asNativeBoolean, asNativeException, asNativeFarReference, asNativeFraction, asNativeNumber, asNativeNumeric, asNativeTable, asNativeText, base_asActorMirror, base_asAsyncMessage, base_asBegin, base_asBoolean, base_asClosure, base_asDefinition, base_asExpression, base_asFarReference, base_asField, base_asHandler, base_asMessage, base_asMessageCreation, base_asMethod, base_asMirror, base_asNumber, base_asSplice, base_asStatement, base_asSymbol, base_asTable, base_asUnquoteSplice, base_asVariableAssignment, base_isBoolean, base_isCallFrame, base_isClosure, base_isFarReference, base_isMessageCreation, base_isMethod, base_isMirror, base_isSplice, base_isSymbol, base_isTable, base_isUnquoteSplice, base_isVariableAssignment, isAmbientTalkObject, isJavaObjectUnderSymbiosis, isNativeBoolean, isNativeField, isNativeText

Field Detail

stripeName_

private final ATSymbol stripeName_

parentStripes_

private final ATTable parentStripes_

Constructor Detail

NATStripe

protected NATStripe(ATSymbol stripeName,
                    ATTable parentStripes)

The constructor is declared protected such that it cannot be used externally, but can be used by the OBJRootStripe class to create a stripe with an empty parent table, which is normally not allowed. Hence, by construction the only stripe with an empty parent table is the root stripe.

Method Detail

atValue

public static NATStripe atValue(java.lang.String stripeName)

atValue

public static NATStripe atValue(ATSymbol stripeName)

atValue

public static NATStripe atValue(java.lang.String stripeName,
                                NATStripe singleParent)

atValue

public static NATStripe atValue(ATSymbol stripeName,
                                ATTable parentStripes)

Stripes should not be created directly because it should be verified that their list of parent stripes is never empty. Stripes created with an empty parent list automatically get assigned the root stripe as their single parent.

base_getStripeName

public ATSymbol base_getStripeName()
                            throws InterpreterException

Specified by:

base_getStripeName in interface ATStripe

Throws:

InterpreterException

base_getParentStripes

public ATTable base_getParentStripes()
                              throws InterpreterException

Specified by:

base_getParentStripes in interface ATStripe

Throws:

InterpreterException

base_isSubstripeOf

public ATBoolean base_isSubstripeOf(ATStripe superstripe)
                             throws InterpreterException

Native implementation of: def isSubstripeOf(superstripe) { (superstripe.name() == name).or: { (superstripes.find: { |sstripe| sstripe.isSubstripeOf(superstripe) }) != nil } };

Specified by:

base_isSubstripeOf in interface ATStripe

Throws:

InterpreterException

equals

public boolean equals(java.lang.Object other)

Identity of stripes is based on their name

Overrides:

equals in class NATNil

base_isStripe

public boolean base_isStripe()

Specified by:

base_isStripe in interface ATConversions

Overrides:

base_isStripe in class NATNil

base_asStripe

public ATStripe base_asStripe()

Specified by:

base_asStripe in interface ATConversions

Overrides:

base_asStripe in class NATNil

meta_print

public NATText meta_print()
                   throws InterpreterException

Description copied from interface: ATObject

Prints out the object in a human-readable way.

Specified by:

meta_print in interface ATObject

Overrides:

meta_print in class NATNil

Throws:

InterpreterException

meta_getStripes

public ATTable meta_getStripes()
                        throws InterpreterException

Description copied from interface: ATObject

Returns the stripes of this object. Note that only the stripes that were attached directly to this object are returned, not all of the parent's stripes as well.

Specified by:

meta_getStripes in interface ATObject

Overrides:

meta_getStripes in class NATNil

Throws:

InterpreterException