de.infinityloop.upcast.upl.val
Class UPLNull

java.lang.Object
  de.infinityloop.upcast.upl.val.UPLValue
      de.infinityloop.upcast.upl.val.UPLNull

Direct Known Subclasses:

UPLVoid

public class UPLNull
extends UPLValue

Field Summary

protected java.lang.String

cause

Fields inherited from class de.infinityloop.upcast.upl.val.UPLValue

isBreakValue, isEmptyReturnValue, isReturnValue, isValid, kTYPE_BOOL, kTYPE_COLOR, kTYPE_ID, kTYPE_LIST, kTYPE_NULL, kTYPE_NUMERIC, kTYPE_STRING, kTYPE_UNKNOWN, kTYPE_VALUE, kTYPE_VOID, type

Constructor Summary

UPLNull(java.lang.String cause)

Method Summary

static UPLNull	castToNull(UPLValue from)
int	compareTo(int compareType, UPLValue to)
java.lang.String	getAsString()
java.lang.String	getAsUPL()
boolean	getBooleanValue() The boolean value of an UPLValue.
java.lang.String	getDebugString()

Methods inherited from class de.infinityloop.upcast.upl.val.UPLValue

add, affirmate, castValueToType, decrement, div, equals, eval, getType, getType, getTypeName, getTypeName, increment, isBreakValue, isEmptyReturnValue, isReturnValue, isValid, mod, negate, not, setBreakValue, setEmptyReturnValue, setReturnValue, setValid, sub, times, toString

Methods inherited from class java.lang.Object

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

Field Detail

cause

protected java.lang.String cause

Constructor Detail

UPLNull

public UPLNull(java.lang.String cause)

Method Detail

castToNull

public static UPLNull castToNull(UPLValue from)

compareTo

public int compareTo(int compareType,
                     UPLValue to)
              throws UPLValueException

Specified by:

compareTo in class UPLValue

Throws:

UPLValueException

getBooleanValue

public boolean getBooleanValue()
                        throws UPLValueException

Description copied from class: UPLValue

The boolean value of an UPLValue.

Specified by:

getBooleanValue in class UPLValue

Returns:

always false

Throws:

UPLValueException

See Also:

UPLValue.getBooleanValue()

getAsUPL

public java.lang.String getAsUPL()

Specified by:

getAsUPL in class UPLValue

getAsString

public java.lang.String getAsString()

Specified by:

getAsString in class UPLValue

getDebugString

public java.lang.String getDebugString()

Specified by:

getDebugString in class UPLValue