jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/bind/v2/schemagen/Tree.java@e530533619ec (annotated)

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/schemagen/Tree.java@e530533619ec (annotated)

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/schemagen/Tree.java

Thu, 12 Oct 2017 19:44:07 +0800

author: aoqi
date: Thu, 12 Oct 2017 19:44:07 +0800
changeset 760: e530533619ec
parent 0: 373ffda63c9a
permissions: -rw-r--r--

merge

 /*
  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package com.sun.xml.internal.bind.v2.schemagen;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import com.sun.xml.internal.bind.v2.schemagen.xmlschema.ContentModelContainer;
 import com.sun.xml.internal.bind.v2.schemagen.xmlschema.Particle;
 import com.sun.xml.internal.bind.v2.schemagen.xmlschema.TypeDefParticle;
 import com.sun.xml.internal.bind.v2.schemagen.xmlschema.Occurs;
 /**
  * Normalized representation of the content model.
  *
  * <p>
  * This is built from bottom up so that we can eliminate redundant constructs,
  * and produce the most concise content model definition in XML.
  *
  * @author Kohsuke Kawaguchi
  */
 abstract class Tree {
     /**
      * Returns "T?" from "T".
      *
      * @param really
      *      if false this method becomes no-op. This is so that we can write
      *      the caller fluently.
      */
     Tree makeOptional(boolean really) {
         return really?new Optional(this) :this;
     }
     /**
      * Returns "T+" from "T".
      *
      * @param really
      *      if false this method becomes no-op. This is so that we can write
      *      the caller fluently.
      */
     Tree makeRepeated(boolean really) {
         return really?new Repeated(this) :this;
     }
     /**
      * Returns a group tree.
      */
     static Tree makeGroup(GroupKind kind, List<Tree> children ) {
         // pointless binary operator.
         if(children.size()==1)
             return children.get(0);
         // we neither have epsilon or emptySet, so can't handle children.length==0 nicely
         // eliminated nesting groups of the same kind.
         // this is where binary tree would have shined.
         List<Tree> normalizedChildren = new ArrayList<Tree>(children.size());
         for (Tree t : children) {
             if (t instanceof Group) {
                 Group g = (Group) t;
                 if(g.kind==kind) {
                     normalizedChildren.addAll(Arrays.asList(g.children));
                     continue;
                 }
             }
             normalizedChildren.add(t);
         }
         return new Group(kind,normalizedChildren.toArray(new Tree[normalizedChildren.size()]));
     }
     /**
      * Returns true if this tree accepts empty sequence.
      */
     abstract boolean isNullable();
     /**
      * Returns true if the top node of this tree can
      * appear as a valid top-level content model in XML Schema.
      *
      * <p>
      * Model groups and occurrences that have model group in it can.
      */
     boolean canBeTopLevel() { return false; }
     /**
      * Writes out the content model.
      *
      * Normall this runs recursively until we write out the whole content model.
      */
     protected abstract void write(ContentModelContainer parent, boolean isOptional, boolean repeated);
     /**
      * Writes inside the given complex type.
      */
     protected void write(TypeDefParticle ct) {
         if(canBeTopLevel())
             write(ct._cast(ContentModelContainer.class), false, false);
         else
             // need a dummy wrapper
             new Group(GroupKind.SEQUENCE,this).write(ct);
     }
     /**
      * Convenience method to write occurrence constraints.
      */
     protected final void writeOccurs(Occurs o, boolean isOptional, boolean repeated) {
         if(isOptional)
             o.minOccurs(0);
         if(repeated)
             o.maxOccurs("unbounded");
     }
     /**
      * Represents a terminal tree node, such as element, wildcard, etc.
      */
     abstract static class Term extends Tree {
         boolean isNullable() {
             return false;
         }
     }
     /**
      * "T?"
      */
     private static final class Optional extends Tree {
         private final Tree body;
         private Optional(Tree body) {
             this.body = body;
         }
         @Override
         boolean isNullable() {
             return true;
         }
         @Override
         Tree makeOptional(boolean really) {
             return this;
         }
         @Override
         protected void write(ContentModelContainer parent, boolean isOptional, boolean repeated) {
             body.write(parent,true,repeated);
         }
     }
     /**
      * "T+"
      */
     private static final class Repeated extends Tree {
         private final Tree body;
         private Repeated(Tree body) {
             this.body = body;
         }
         @Override
         boolean isNullable() {
             return body.isNullable();
         }
         @Override
         Tree makeRepeated(boolean really) {
             return this;
         }
         @Override
         protected void write(ContentModelContainer parent, boolean isOptional, boolean repeated) {
             body.write(parent,isOptional,true);
         }
     }
     /**
      * "S|T", "S,T", and "S&amp;T".
      */
     private static final class Group extends Tree {
         private final GroupKind kind;
         private final Tree[] children;
         private Group(GroupKind kind, Tree... children) {
             this.kind = kind;
             this.children = children;
         }
         @Override
         boolean canBeTopLevel() {
             return true;
         }
         @Override
         boolean isNullable() {
             if(kind== GroupKind.CHOICE) {
                 for (Tree t : children) {
                     if(t.isNullable())
                         return true;
                 }
                 return false;
             } else {
                 for (Tree t : children) {
                     if(!t.isNullable())
                         return false;
                 }
                 return true;
             }
         }
         @Override
         protected void write(ContentModelContainer parent, boolean isOptional, boolean repeated) {
             Particle c = kind.write(parent);
             writeOccurs(c,isOptional,repeated);
             for (Tree child : children) {
                 child.write(c,false,false);
             }
         }
     }
 }

Mercurial > jdk8-mips64-public > jaxws / annotate

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/schemagen/Tree.java@e530533619ec (annotated)

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/schemagen/Tree.java