Examples of org.modeshape.jcr.query.model.DescendantNode

org.modeshape.jcr.query.model.DescendantNode
A constraint requiring that the selected node is a descendant of the node reachable by the supplied absolute path

        NamedSelector selector = (NamedSelector)query.source();
        assertThat(selector.name(), is(selectorName("car:Car")));
        assertThat(selector.aliasOrName(), is(selectorName("car:Car")));
        assertThat(selector.alias(), is(nullValue()));
        // WHERE ...
        DescendantNode desc = isDescendantNodeCriteria(query.constraint());
        assertThat(desc.getSelectorName(), is("car:Car"));
        assertThat(desc.getAncestorPath(), is("/foo/bar"));
    }

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        NamedSelector selector = (NamedSelector)query.source();
        assertThat(selector.name(), is(selectorName("car:Car")));
        assertThat(selector.aliasOrName(), is(selectorName("car:Car")));
        assertThat(selector.alias(), is(nullValue()));
        // WHERE ...
        DescendantNode desc = isDescendantNodeCriteria(query.constraint());
        assertThat(desc.getSelectorName(), is("car:Car"));
        assertThat(desc.getAncestorPath(), is("/foo/bar[2]"));
    }

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        NamedSelector selector = (NamedSelector)query.source();
        assertThat(selector.name(), is(selectorName("car:Car")));
        assertThat(selector.aliasOrName(), is(selectorName("car:Car")));
        assertThat(selector.alias(), is(nullValue()));
        // WHERE ...
        DescendantNode desc = isDescendantNodeCriteria(query.constraint());
        assertThat(desc.getSelectorName(), is("car:Car"));
        assertThat(desc.getAncestorPath(), is("/foo/bar[2]"));
    }

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    @Test
    public void shouldParseConstraintFromStringWithIsDescendantNodeExpressionWithPathOnlyIfThereIsOneSelectorSource() {
        NamedSelector selector = new NamedSelector(selectorName("tableA"));
        Constraint constraint = parser.parseConstraint(tokens("ISDESCENDANTNODE('/a/b/c')"), typeSystem, selector);
        assertThat(constraint, is(instanceOf(DescendantNode.class)));
        DescendantNode descendant = (DescendantNode)constraint;
        assertThat(descendant.selectorName(), is(selectorName("tableA")));
        assertThat(descendant.getAncestorPath(), is("/a/b/c"));
    }

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    public void shouldParseConstraintFromStringWithIsDescendantNodeExpressionWithSelectorNameAndPath() {
        Constraint constraint = parser.parseConstraint(tokens("ISDESCENDANTNODE(tableA,'/a/b/c')"),
                                                       typeSystem,
                                                       mock(Source.class));
        assertThat(constraint, is(instanceOf(DescendantNode.class)));
        DescendantNode descendant = (DescendantNode)constraint;
        assertThat(descendant.selectorName(), is(selectorName("tableA")));
        assertThat(descendant.getAncestorPath(), is("/a/b/c"));
    }

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        return new ChildNode(name, path);
    }


    protected DescendantNode descendantNode( SelectorName name,
                                             String path ) {
        return new DescendantNode(name, path);
    }

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        if (constraint instanceof ChildNode) {
            ChildNode childNode = (ChildNode)constraint;
            return new ChildNode(childNode.selectorName(), childNode.getParentPath());
        }
        if (constraint instanceof DescendantNode) {
            DescendantNode descNode = (DescendantNode)constraint;
            return new DescendantNode(descNode.selectorName(), descNode.getAncestorPath());
        }
        if (constraint instanceof PropertyExistence) {
            return constraint;
        }
        if (constraint instanceof FullTextSearch) {

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                    return "(filter " + Visitors.readable(constraint) + ")";
                }
            };
        }
        if (constraint instanceof DescendantNode) {
            DescendantNode descendantNode = (DescendantNode)constraint;
            PathFactory paths = context.getExecutionContext().getValueFactories().getPathFactory();
            final Path ancestorPath = paths.create(descendantNode.getAncestorPath());
            final NodeCache cache = context.getNodeCache(sources.getWorkspaceName());
            final CachedNode ancestor = sources.getNodeAtPath(ancestorPath, cache);
            if (ancestor == null) {
                return NodeSequence.NO_PASS_ROW_FILTER;
            }
            final NodeKey ancestorKey = ancestor.getKey();
            final String selectorName = descendantNode.getSelectorName();
            final int index = columns.getSelectorIndex(selectorName);
            return new RowFilter() {
                @Override
                public boolean isCurrentRowValid( Batch batch ) {
                    CachedNode node = batch.getNode(index);

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                    ChildNode childNode = (ChildNode)constraint;
                    String path = childNode.getParentPath();
                    calculator.addIndex(CHILDREN_BY_PATH_INDEX_NAME, null, null, singletonList(constraint), 10, 100L, -1.0f,
                                        PATH_PARAMETER, path);
                } else if (constraint instanceof DescendantNode) {
                    DescendantNode descendantNode = (DescendantNode)constraint;
                    String path = descendantNode.getAncestorPath();
                    calculator.addIndex(DESCENDANTS_BY_PATH_INDEX_NAME, null, null, singletonList(constraint), 1000, 10000L,
                                        -1.0f, PATH_PARAMETER, path);
                } else if (constraint instanceof Comparison) {
                    Comparison comparison = (Comparison)constraint;
                    if (comparison.operator() != Operator.EQUAL_TO) return;

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            SelectorName replacement = rewrittenSelectors.get(childNode.selectorName());
            if (replacement == null) return childNode;
            return new ChildNode(replacement, childNode.getParentPath());
        }
        if (constraint instanceof DescendantNode) {
            DescendantNode descendantNode = (DescendantNode)constraint;
            SelectorName replacement = rewrittenSelectors.get(descendantNode.selectorName());
            if (replacement == null) return descendantNode;
            return new DescendantNode(replacement, descendantNode.getAncestorPath());
        }
        if (constraint instanceof PropertyExistence) {
            PropertyExistence existence = (PropertyExistence)constraint;
            SelectorName replacement = rewrittenSelectors.get(existence.selectorName());
            if (replacement == null) return existence;

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