|
Java example source code file (XSCMBinOp.java)
The XSCMBinOp.java Java example source code/* * reserved comment block * DO NOT REMOVE OR ALTER! */ /* * Copyright 1999-2002,2004 The Apache Software Foundation. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.sun.org.apache.xerces.internal.impl.xs.models; import com.sun.org.apache.xerces.internal.impl.dtd.models.CMNode; import com.sun.org.apache.xerces.internal.impl.dtd.models.CMStateSet; import com.sun.org.apache.xerces.internal.impl.xs.XSModelGroupImpl; /** * * Content model Bin-Op node. * * @xerces.internal * * @author Neil Graham, IBM */ public class XSCMBinOp extends CMNode { // ------------------------------------------------------------------- // Constructors // ------------------------------------------------------------------- public XSCMBinOp(int type, CMNode leftNode, CMNode rightNode) { super(type); // Insure that its one of the types we require if ((type() != XSModelGroupImpl.MODELGROUP_CHOICE) && (type() != XSModelGroupImpl.MODELGROUP_SEQUENCE)) { throw new RuntimeException("ImplementationMessages.VAL_BST"); } // Store the nodes and init any data that needs it fLeftChild = leftNode; fRightChild = rightNode; } // ------------------------------------------------------------------- // Package, final methods // ------------------------------------------------------------------- final CMNode getLeft() { return fLeftChild; } final CMNode getRight() { return fRightChild; } // ------------------------------------------------------------------- // Package, inherited methods // ------------------------------------------------------------------- public boolean isNullable() { // // If its an alternation, then if either child is nullable then // this node is nullable. If its a concatenation, then both of // them have to be nullable. // if (type() == XSModelGroupImpl.MODELGROUP_CHOICE) return (fLeftChild.isNullable() || fRightChild.isNullable()); else if (type() == XSModelGroupImpl.MODELGROUP_SEQUENCE) return (fLeftChild.isNullable() && fRightChild.isNullable()); else throw new RuntimeException("ImplementationMessages.VAL_BST"); } // ------------------------------------------------------------------- // Protected, inherited methods // ------------------------------------------------------------------- protected void calcFirstPos(CMStateSet toSet) { if (type() == XSModelGroupImpl.MODELGROUP_CHOICE) { // Its the the union of the first positions of our children. toSet.setTo(fLeftChild.firstPos()); toSet.union(fRightChild.firstPos()); } else if (type() == XSModelGroupImpl.MODELGROUP_SEQUENCE) { // // If our left child is nullable, then its the union of our // children's first positions. Else is our left child's first // positions. // toSet.setTo(fLeftChild.firstPos()); if (fLeftChild.isNullable()) toSet.union(fRightChild.firstPos()); } else { throw new RuntimeException("ImplementationMessages.VAL_BST"); } } protected void calcLastPos(CMStateSet toSet) { if (type() == XSModelGroupImpl.MODELGROUP_CHOICE) { // Its the the union of the first positions of our children. toSet.setTo(fLeftChild.lastPos()); toSet.union(fRightChild.lastPos()); } else if (type() == XSModelGroupImpl.MODELGROUP_SEQUENCE) { // // If our right child is nullable, then its the union of our // children's last positions. Else is our right child's last // positions. // toSet.setTo(fRightChild.lastPos()); if (fRightChild.isNullable()) toSet.union(fLeftChild.lastPos()); } else { throw new RuntimeException("ImplementationMessages.VAL_BST"); } } // ------------------------------------------------------------------- // Private data members // // fLeftChild // fRightChild // These are the references to the two nodes that are on either // side of this binary operation. // ------------------------------------------------------------------- private CMNode fLeftChild; private CMNode fRightChild; } // XSCMBinOp Other Java examples (source code examples)Here is a short list of links related to this Java XSCMBinOp.java source code file: |
... this post is sponsored by my books ... | |
#1 New Release! |
FP Best Seller |
Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.
A percentage of advertising revenue from
pages under the /java/jwarehouse
URI on this website is
paid back to open source projects.