1 /* 2 * Portions of this software was developed by employees of the National Institute 3 * of Standards and Technology (NIST), an agency of the Federal Government and is 4 * being made available as a public service. Pursuant to title 17 United States 5 * Code Section 105, works of NIST employees are not subject to copyright 6 * protection in the United States. This software may be subject to foreign 7 * copyright. Permission in the United States and in foreign countries, to the 8 * extent that NIST may hold copyright, to use, copy, modify, create derivative 9 * works, and distribute this software and its documentation without fee is hereby 10 * granted on a non-exclusive basis, provided that this notice and disclaimer 11 * of warranty appears in all copies. 12 * 13 * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER 14 * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY 15 * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM 17 * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE 18 * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE. IN NO EVENT 19 * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT, 20 * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM, 21 * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY, 22 * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR 23 * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT 24 * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER. 25 */ 26 27 package gov.nist.secauto.metaschema.core.metapath; 28 29 import gov.nist.secauto.metaschema.core.metapath.item.node.INodeItem; 30 31 import java.util.List; 32 33 import edu.umd.cs.findbugs.annotations.NonNull; 34 35 abstract class AbstractRelativePathExpression 36 extends AbstractPathExpression<INodeItem> { 37 @NonNull 38 private final IExpression left; 39 @NonNull 40 private final IExpression right; 41 @NonNull 42 private final Class<? extends INodeItem> staticResultType; 43 44 /** 45 * Construct a new relative path expression of "left/right". 46 * 47 * @param left 48 * the left part of the path 49 * @param right 50 * the right part of the path 51 */ 52 @SuppressWarnings("null") 53 public AbstractRelativePathExpression(@NonNull IExpression left, @NonNull IExpression right) { 54 this.left = left; 55 this.right = right; 56 this.staticResultType = ExpressionUtils.analyzeStaticResultType(getBaseResultType(), List.of(left, right)); 57 } 58 59 /** 60 * The expression associated with the left path segment. 61 * 62 * @return the expression 63 */ 64 @NonNull 65 public IExpression getLeft() { 66 return left; 67 } 68 69 /** 70 * The expression associated with the right path segment. 71 * 72 * @return the expression 73 */ 74 @NonNull 75 public IExpression getRight() { 76 return right; 77 } 78 79 @SuppressWarnings("null") 80 @Override 81 public List<? extends IExpression> getChildren() { 82 return List.of(left, right); 83 } 84 85 @Override 86 public final @NonNull Class<INodeItem> getBaseResultType() { 87 return INodeItem.class; 88 } 89 90 @Override 91 public Class<? extends INodeItem> getStaticResultType() { 92 return staticResultType; 93 } 94 }