src.java.com.ctc.wstx.dtd.ModelNode Maven / Gradle / Ivy
package com.ctc.wstx.dtd;
import java.util.BitSet;
import java.util.List;
/**
* Abstract base class for classes constructed from {@link ContentSpec}
* objects, when they get rewritten (when their {@link ContentSpec#rewrite}
* gets called). These nodes are then used for constructing complete DFA
* states for validation.
*/
public abstract class ModelNode
{
/*
///////////////////////////////////////////////////
// Methods needed for DFA construction
///////////////////////////////////////////////////
*/
/**
* Method that has to create a deep copy of the model, without
* sharing any of existing Objects.
*/
public abstract ModelNode cloneModel();
public abstract boolean isNullable();
public abstract void indexTokens(List tokens);
public abstract void addFirstPos(BitSet firstPos);
public abstract void addLastPos(BitSet firstPos);
public abstract void calcFollowPos(BitSet[] followPosSets);
}