org.drools.lang
Class DroolsTreeAdaptor

java.lang.Object
  org.antlr.runtime.tree.BaseTreeAdaptor
      org.antlr.runtime.tree.CommonTreeAdaptor
          org.drools.lang.DroolsTreeAdaptor

All Implemented Interfaces:

org.antlr.runtime.tree.TreeAdaptor

public class DroolsTreeAdaptor
extends org.antlr.runtime.tree.CommonTreeAdaptor

This tree adaptor is a factory for DroolsTree. DRLParser must use this tree adaptor.

Field Summary

Fields inherited from class org.antlr.runtime.tree.BaseTreeAdaptor

treeToUniqueIDMap, uniqueNodeID

Constructor Summary

DroolsTreeAdaptor()

Method Summary

void	addChild(Object t, Object child) Add a child to the tree t.
Object	create(int tokenType, org.antlr.runtime.Token fromToken, String text) Create a DroolsTree and keeps the char offset info.
Object	create(org.antlr.runtime.Token token) Based on token parameter it returns a new DroolsTree.
org.antlr.runtime.Token	createToken(int tokenType, String text) Overrides createToken, returning a DroolsToken instead of CommonToken
org.antlr.runtime.Token	createToken(org.antlr.runtime.Token fromToken) Overrides createToken, returning a DroolsToken instead of CommonToken

Methods inherited from class org.antlr.runtime.tree.CommonTreeAdaptor

dupNode, getChild, getChildCount, getChildIndex, getParent, getText, getToken, getTokenStartIndex, getTokenStopIndex, getType, replaceChildren, setChildIndex, setParent, setTokenBoundaries

Methods inherited from class org.antlr.runtime.tree.BaseTreeAdaptor

becomeRoot, becomeRoot, create, create, deleteChild, dupTree, dupTree, errorNode, getUniqueID, isNil, nil, rulePostProcessing, setChild, setText, setType

Methods inherited from class java.lang.Object

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

Constructor Detail

DroolsTreeAdaptor

public DroolsTreeAdaptor()

Method Detail

create

public Object create(org.antlr.runtime.Token token)

Based on token parameter it returns a new DroolsTree. Also set the char offset info and editor type based on token type.

Specified by:

create in interface org.antlr.runtime.tree.TreeAdaptor

Overrides:

create in class org.antlr.runtime.tree.CommonTreeAdaptor

Parameters:

token - token

Returns:

DroolsTree object with char offset and editor type info

create

public Object create(int tokenType,
                     org.antlr.runtime.Token fromToken,
                     String text)

Create a DroolsTree and keeps the char offset info.

Specified by:

create in interface org.antlr.runtime.tree.TreeAdaptor

Overrides:

create in class org.antlr.runtime.tree.BaseTreeAdaptor

addChild

public void addChild(Object t,
                     Object child)

Add a child to the tree t. If t does not have start offset info, it set t start offset info from child. And always set t end char offset from child. The exception is RIGHT_PAREN, it is used just to keep the char set info but not added on t.

Specified by:

addChild in interface org.antlr.runtime.tree.TreeAdaptor

Overrides:

addChild in class org.antlr.runtime.tree.BaseTreeAdaptor

Parameters:

t - parent tree

child - child tree

createToken

public org.antlr.runtime.Token createToken(int tokenType,
                                           String text)

Overrides createToken, returning a DroolsToken instead of CommonToken

Overrides:

createToken in class org.antlr.runtime.tree.CommonTreeAdaptor

createToken

public org.antlr.runtime.Token createToken(org.antlr.runtime.Token fromToken)

Overrides createToken, returning a DroolsToken instead of CommonToken

Overrides:

createToken in class org.antlr.runtime.tree.CommonTreeAdaptor