org.springframework.beans.factory.parsing
Class ParseState

java.lang.Object
  org.springframework.beans.factory.parsing.ParseState

public final class ParseState
extends java.lang.Object

Simple Stack-based structure for tracking the logical position during a parsing process. entries are added to the stack at each point during the parse phase in a reader-specific manner.

Calling toString() will render a tree-style view of the current logical position in the parse phase. This representation is intended for use in error messages.

Since:

2.0

Author:

Rob Harrop

Nested Class Summary

static interface

ParseState.Entry Marker interface for entries into the ParseState.

Field Summary

private java.util.Stack	state Internal Stack storage.
private static char	TAB Tab character used when rendering the tree-style representation.

Constructor Summary

	ParseState() Create a new ParseState with an empty Stack.
private	ParseState(ParseState other) Create a new ParseState whose Stack is a clone of that of the passed in ParseState.

Method Summary

ParseState.Entry	peek() Return the ParseState.Entry currently at the top of the Stack or null if the Stack is empty.
void	pop() Remove an ParseState.Entry from the Stack.
void	push(ParseState.Entry entry) Add a new ParseState.Entry to the Stack.
ParseState	snapshot() Create a new instance of ParseState which is an independent snapshot of this instance.
java.lang.String	toString() Returns a tree-style representation of the current ParseState.

Methods inherited from class java.lang.Object

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

Field Detail

TAB

private static final char TAB

Tab character used when rendering the tree-style representation.

See Also:

Constant Field Values

state

private final java.util.Stack state

Internal Stack storage.

Constructor Detail

ParseState

public ParseState()

Create a new ParseState with an empty Stack.

ParseState

private ParseState(ParseState other)

Create a new ParseState whose Stack is a clone of that of the passed in ParseState.

Method Detail

push

public void push(ParseState.Entry entry)

Add a new ParseState.Entry to the Stack.

pop

public void pop()

Remove an ParseState.Entry from the Stack.

peek

public ParseState.Entry peek()

Return the ParseState.Entry currently at the top of the Stack or null if the Stack is empty.

snapshot

public ParseState snapshot()

Create a new instance of ParseState which is an independent snapshot of this instance.

toString

public java.lang.String toString()

Returns a tree-style representation of the current ParseState.

Overrides:

toString in class java.lang.Object