File	Doc	Category	Size	Date	Package
XSGrammarBucket.java	API Doc	Apache Xerces 3.0.1	6109	Fri Sep 14 20:33:54 BST 2007	org.apache.xerces.impl.xs

XSGrammarBucket

• java.lang.Object

Fields Summary
Hashtable	fGrammarRegistry Hashtable that maps between Namespace and a Grammar
SchemaGrammar	fNoNSGrammar

Constructors Summary

Methods Summary
public SchemaGrammar	getGrammar(java.lang.String namespace) Get the schema grammar for the specified namespace param namespace return SchemaGrammar associated with the namespace if (namespace == null) return fNoNSGrammar; return (SchemaGrammar)fGrammarRegistry.get(namespace);
public SchemaGrammar[]	getGrammars() get all grammars in the registry return an array of SchemaGrammars. // get the number of grammars int count = fGrammarRegistry.size() + (fNoNSGrammar==null ? 0 : 1); SchemaGrammar[] grammars = new SchemaGrammar[count]; // get grammars with target namespace Enumeration schemas = fGrammarRegistry.elements(); int i = 0; while (schemas.hasMoreElements()) grammars[i++] = (SchemaGrammar)schemas.nextElement(); // add the grammar without target namespace, if any if (fNoNSGrammar != null) grammars[count-1] = fNoNSGrammar; return grammars;
public void	putGrammar(SchemaGrammar grammar) Put a schema grammar into the registry This method is for internal use only: it assumes that a grammar with the same target namespace is not already in the bucket. param grammar the grammar to put in the registry if (grammar.getTargetNamespace() == null) fNoNSGrammar = grammar; else fGrammarRegistry.put(grammar.getTargetNamespace(), grammar);
public boolean	putGrammar(SchemaGrammar grammar, boolean deep) put a schema grammar and any grammars imported by it (directly or inderectly) into the registry. when a grammar with the same target namespace is already in the bucket, and different from the one being added, it's an error, and no grammar will be added into the bucket. param grammar the grammar to put in the registry param deep whether to add imported grammars return whether the process succeeded // whether there is one with the same tns SchemaGrammar sg = getGrammar(grammar.fTargetNamespace); if (sg != null) { // if the one we have is different from the one passed, it's an error return sg == grammar; } // not deep import, then just add this one grammar if (!deep) { putGrammar(grammar); return true; } // get all imported grammars, and make a copy of the Vector, so that // we can recursively process the grammars, and add distinct ones // to the same vector Vector currGrammars = (Vector)grammar.getImportedGrammars(); if (currGrammars == null) { putGrammar(grammar); return true; } Vector grammars = ((Vector)currGrammars.clone()); SchemaGrammar sg1, sg2; Vector gs; // for all (recursively) imported grammars for (int i = 0; i < grammars.size(); i++) { // get the grammar sg1 = (SchemaGrammar)grammars.elementAt(i); // check whether the bucket has one with the same tns sg2 = getGrammar(sg1.fTargetNamespace); if (sg2 == null) { // we need to add grammars imported by sg1 too gs = sg1.getImportedGrammars(); // for all grammars imported by sg2, but not in the vector // we add them to the vector if(gs == null) continue; for (int j = gs.size() - 1; j >= 0; j--) { sg2 = (SchemaGrammar)gs.elementAt(j); if (!grammars.contains(sg2)) grammars.addElement(sg2); } } // we found one with the same target namespace // if the two grammars are not the same object, then it's an error else if (sg2 != sg1) { return false; } } // now we have all imported grammars stored in the vector. add them putGrammar(grammar); for (int i = grammars.size() - 1; i >= 0; i--) putGrammar((SchemaGrammar)grammars.elementAt(i)); return true;
public void	reset() Clear the registry. REVISIT: update to use another XSGrammarBucket fNoNSGrammar = null; fGrammarRegistry.clear();