org.nineml.coffeegrinder.exceptions

Class TreeWalkerException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

org.nineml.coffeegrinder.exceptions.CoffeeGrinderException

org.nineml.coffeegrinder.exceptions.TreeWalkerException

All Implemented Interfaces:

java.io.Serializable

public class TreeWalkerException
extends CoffeeGrinderException

Tree walking exceptions.

Tree walking exceptions are generally errors in the implementation of the tree walker.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TreeWalkerException(java.lang.String code, java.lang.String message) Grammar exception with a message.
TreeWalkerException(java.lang.String code, java.lang.String message, java.lang.Throwable cause) Grammar exception with an underlying cause.

Method Summary

Modifier and Type	Method and Description
static TreeWalkerException	internalError() Raised if an internal error occurs.
static TreeWalkerException	invalidChoiceSelected() Raised if a Axe.select(org.nineml.coffeegrinder.trees.ParseTree, org.nineml.coffeegrinder.parser.ForestNode, int, java.util.List<org.nineml.coffeegrinder.parser.Family>) function returns an any elements not taken from the list of choices offered or any duplicates in the list of potential future choices.
static TreeWalkerException	noChoiceSelected() Raised if a Axe.select(org.nineml.coffeegrinder.trees.ParseTree, org.nineml.coffeegrinder.parser.ForestNode, int, java.util.List<org.nineml.coffeegrinder.parser.Family>) function returns an empty list.
static TreeWalkerException	noMoreTrees() Raised if an attempt is made to walk a tree when there are no more trees.
static TreeWalkerException	noTrees() Raised if an attempt is made to walk a tree when there are no trees.

Methods inherited from class org.nineml.coffeegrinder.exceptions.CoffeeGrinderException

getCode

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

TreeWalkerException

public TreeWalkerException(java.lang.String code,
                           java.lang.String message)

Grammar exception with a message.

Parameters:

code - the code

message - the message

TreeWalkerException

public TreeWalkerException(java.lang.String code,
                           java.lang.String message,
                           java.lang.Throwable cause)

Grammar exception with an underlying cause.

Parameters:

code - the code

message - the message

cause - the cause

Method Detail

noChoiceSelected

public static TreeWalkerException noChoiceSelected()

Raised if a Axe.select(org.nineml.coffeegrinder.trees.ParseTree, org.nineml.coffeegrinder.parser.ForestNode, int, java.util.List<org.nineml.coffeegrinder.parser.Family>) function returns an empty list.

Returns:

a TreeWalkerException

noMoreTrees

public static TreeWalkerException noMoreTrees()

Raised if an attempt is made to walk a tree when there are no more trees.

Returns:

a TreeWalkerException

internalError

public static TreeWalkerException internalError()

Raised if an internal error occurs.

Returns:

a TreeWalkerException

invalidChoiceSelected

public static TreeWalkerException invalidChoiceSelected()

Raised if a Axe.select(org.nineml.coffeegrinder.trees.ParseTree, org.nineml.coffeegrinder.parser.ForestNode, int, java.util.List<org.nineml.coffeegrinder.parser.Family>) function returns an any elements not taken from the list of choices offered or any duplicates in the list of potential future choices.

Returns:

a TreeWalkerException

noTrees

public static TreeWalkerException noTrees()

Raised if an attempt is made to walk a tree when there are no trees. (The parse failed.)

Returns:

a TreeWalkerException