public final class BooleanRegister extends Object implements ScalarRegister, BooleanSettable
BooleanValued
object.Constructor and Description |
---|
BooleanRegister()
Creates a new null-valued register.
|
Modifier and Type | Method and Description |
---|---|
boolean |
asBoolean()
Gets the contained boolean value.
|
ScalarTokenType |
getType()
Gets the data type of the token.
|
boolean |
isNull()
Indicates whether the token is null valued.
|
boolean |
isZero()
Indicates whether the value is the zero value
for the type.
|
void |
set(boolean value)
Sets the container to the given boolean value.
|
void |
set(TokenValued value)
Sets the contained value to the given token value.
|
void |
setNull()
Sets the contained value to be null valued.
|
void |
setZero()
Sets the contained value to be zero valued.
|
String |
toString() |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
getType, isZero
isNull
public void setNull()
TokenSettable
setNull
in interface TokenSettable
public void setZero()
TokenSettable
setZero
in interface TokenSettable
public void set(boolean value)
BooleanSettable
set
in interface BooleanSettable
value
- boolean value to which to set the containerpublic void set(TokenValued value)
TokenSettable
set
in interface TokenSettable
value
- the value to which to set the containerpublic final ScalarTokenType getType()
TokenValued
getType
in interface ScalarValued
getType
in interface TokenValued
getType
in interface ScalarTyped
getType
in interface TokenTyped
public final boolean isZero()
ScalarValued
isZero
in interface ScalarValued
true
if the value is the zero value,
false
otherwise.public final boolean asBoolean()
BooleanValued
asBoolean
in interface BooleanValued
boolean
. If null valued,
as indicated by TokenValued.isNull()
, false
is returned.public final boolean isNull()
TokenValued
isNull
in interface TokenValued
true
if the token is null valued,
false
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