项目：xm-ms-entity
文件：EntityGraphRepositoryImpl.java
private static void addAttributeNodes(String fieldName,EntityGraph<?> graph) {
int pos = fieldName.indexOf(GRAPH_DELIMETER);
if (pos < 0) {
graph.addAttributeNodes(fieldName);
return;
}
String subgraphName = fieldName.substring(0,pos);
Subgraph<?> subGraph = graph.addSubgraph(subgraphName);
String nextFieldName = fieldName.substring(pos + 1);
pos = nextFieldName.indexOf(GRAPH_DELIMETER);
while (pos > 0) {
subgraphName = nextFieldName.substring(0,pos);
subGraph = graph.addSubgraph(subgraphName);
nextFieldName = nextFieldName.substring(pos + 1);
pos = nextFieldName.indexOf(GRAPH_DELIMETER);
}
subGraph.addAttributeNodes(nextFieldName);
}
项目：lams
文件：AbstractEntityGraphVisitationStrategy.java
/**
* I'm using NULL-OBJECT pattern here,for attributes that not existing in the EntityGraph,* a predefined NULL-ATTRIBUTE-NODE is pushed to the stack.
*
* and for an not existing sub graph,a predefined NULL-SUBGRAPH is pushed to the stack.
*
* So,whenever we're start visiting an attribute,there will be a attribute node pushed to the attribute stack,* and a subgraph node pushed to the graph stack.
*
* when we're finish visiting an attribute,these two will be poped from each stack.
*/
@Override
public boolean startingAttribute(AttributeDeFinition attributeDeFinition) {
Map<String,AttributeNodeImplementor> attributeMap = attributeMapStack.peekLast();
final String attrName = attributeDeFinition.getName();
AttributeNodeImplementor attributeNode = NON_EXIST_ATTRIBUTE_NODE;
GraphNodeImplementor subGraphNode = NON_EXIST_SUBGRAPH_NODE;
//the attribute is in the EntityGraph,so,let's continue
if ( attributeMap.containsKey( attrName ) ) {
attributeNode = attributeMap.get( attrName );
//here we need to check if there is a subgraph (or sub key graph if it is an indexed attribute )
Map<Class,Subgraph> subGraphs = attributeNode.getSubgraphs();
Class javaType = attributeDeFinition.getType().getReturnedClass();
if ( !subGraphs.isEmpty() && subGraphs.containsKey( javaType ) ) {
subGraphNode = (GraphNodeImplementor) subGraphs.get( javaType );
}
}
attributeStack.addLast( attributeNode );
graphStack.addLast( subGraphNode );
return super.startingAttribute( attributeDeFinition );
}
项目：crnk-framework
文件：EntityGraphBuilderImpl.java
private <T> Subgraph<Object> applyFetchPaths(EntityGraph<T> graph,MetaAttributePath fetchPath) {
if (fetchPath.length() >= 2) {
// ensure parent is fetched
MetaAttributePath parentPath = fetchPath.subPath(0,fetchPath.length() - 1);
Subgraph<Object> parentGraph = applyFetchPaths(graph,parentPath);
return parentGraph.addSubgraph(fetchPath.toString());
} else {
return graph.addSubgraph(fetchPath.toString());
}
}
项目：lams
文件：AbstractEntityGraphVisitationStrategy.java
@Override
public void startingCollectionElements(
final CollectionElementDeFinition elementDeFinition) {
AttributeNodeImplementor attributeNode = attributeStack.peekLast();
GraphNodeImplementor subGraphNode = NON_EXIST_SUBGRAPH_NODE;
Map<Class,Subgraph> subGraphs = attributeNode.getSubgraphs();
Class javaType = elementDeFinition.getType().getReturnedClass();
if ( !subGraphs.isEmpty() && subGraphs.containsKey( javaType ) ) {
subGraphNode = (GraphNodeImplementor) subGraphs.get( javaType );
}
graphStack.addLast( subGraphNode );
super.startingCollectionElements( elementDeFinition );
}
项目：lams
文件：AbstractEntityGraphVisitationStrategy.java
@Override
public void startingCollectionIndex(final CollectionIndexDeFinition indexDeFinition) {
AttributeNodeImplementor attributeNode = attributeStack.peekLast();
GraphNodeImplementor subGraphNode = NON_EXIST_SUBGRAPH_NODE;
Map<Class,Subgraph> subGraphs = attributeNode.getKeySubgraphs();
Class javaType = indexDeFinition.getType().getReturnedClass();
if ( !subGraphs.isEmpty() && subGraphs.containsKey( javaType ) ) {
subGraphNode = (GraphNodeImplementor) subGraphs.get( javaType );
}
graphStack.addLast( subGraphNode );
super.startingCollectionIndex( indexDeFinition );
}
项目：katharsis-framework
文件：AbstractQueryExecutorImpl.java
private Subgraph<Object> applyFetchPaths(EntityGraph<T> graph,parentPath);
return parentGraph.addSubgraph(fetchPath.toString());
}
else {
return graph.addSubgraph(fetchPath.toString());
}
}
项目：jEDM
文件：BuildEntityGraph.java
/**
* Builds an subgraph and connects it with the upper graph.
*
* @param subgraph
* current subgraph without any elements (graph is already
* connected to upper-graph)
* @param graphName
* name of the entity-graph
* @param upperElem
* Element which references to the subgraph
* @param subgraphList
* List with all defined subgraph-nodes
* @param doc
* Document which is needed for the compilation of the xpath
* @return a new build subgraph
*/
private Subgraph<?> buildSubgraph(final Subgraph<?> subgraph,final String graphName,final Element upperElem,final NodeList subgraphList,final Document doc) {
// searches for the right subgraph
for (int j = 0; j < subgraphList.getLength(); ++j) {
final Element subgraphElem = (Element) subgraphList.item(j);
if (subgraphElem.getAttribute("name").equals(upperElem.getAttribute("subgraph"))) {
final String attributesSubgraphListString = "//named-entity-graph[@name='" + graphName
+ "']/subgraph[@name='" + subgraphElem.getAttribute("name") + "']/named-attribute-node";
NodeList attributesSubgraphList = null;
try {
attributesSubgraphList = (NodeList) xPath.compile(attributesSubgraphListString).evaluate(doc,XPathConstants.NODESET);
} catch (final XPathExpressionException e) {
LOGGER.warn("Exception in BuildEntityGraph::buildSubgraph,full stack trace follows: ",e);
}
// reads all attributes of the subgraph
for (int k = 0; k < attributesSubgraphList.getLength(); ++k) {
final Element attributeSubgraphElem = (Element) attributesSubgraphList.item(k);
// attributes of subgraph
if ("".equals(attributeSubgraphElem.getAttribute("subgraph"))) {
// adds the attributes to the subgraph
subgraph.addAttributeNodes(attributeSubgraphElem.getAttribute("name"));
}
// references to other subgraphs
else {
Subgraph<?> deeperSubgraph = null;
deeperSubgraph = subgraph.addSubgraph(attributeSubgraphElem.getAttribute("name"));
buildSubgraph(deeperSubgraph,graphName,attributeSubgraphElem,subgraphList,doc);
}
}
}
}
return subgraph;
}
项目：lams
文件：AbstractEntityGraphVisitationStrategy.java
@Override
public Map<Class,Subgraph> getSubgraphs() {
return Collections.emptyMap();
}
项目：lams
文件：AbstractEntityGraphVisitationStrategy.java
@Override
public Map<Class,Subgraph> getKeySubgraphs() {
return Collections.emptyMap();
}
项目：jEDM
文件：BuildEntityGraph.java
/**
* Builds an entity graph from a XML file.
*
* @param graphName
* name of the entity graph
* @param classtype
* entity graph with rootElement of classtype
* @return result generated entity graph with rootElement of classtype - can
* be null if an error occurs during entity graph initialization
*/
@Override
public <T> EntityGraph<?> generateEntityGraphXPath(final EntityManager em,final Class<T> classtype) {
EntityGraph<?> graph = null;
try {
URL centralMappingFilePath = JEntityGraphDataMapper.class.getResource(FilePaths.CENTRAL_XML_NAME.path());
File centralRules;
centralRules = new File(centralMappingFilePath.toURI());
final DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
final DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
final Document doc = dBuilder.parse(centralRules);
doc.getDocumentElement().normalize();
xPath = XPathFactory.newInstance().newXPath();
// list of attribute-nodes from the root class of the selected
// entity graph
final String attributeRootNodeListString = "//named-entity-graph[@name='" + graphName
+ "']/named-attribute-node";
final NodeList attributeRootNodeList = (NodeList) xPath.compile(attributeRootNodeListString).evaluate(doc,XPathConstants.NODESET);
// list of all subgraphs
final String subgraphListString = "//named-entity-graph[@name='" + graphName + "']/subgraph";
final NodeList subgraphList = (NodeList) xPath.compile(subgraphListString).evaluate(doc,XPathConstants.NODESET);
// create EntityGraph
graph = em.createEntityGraph(classtype);
// reads all named-attribute-nodes below the named-entity-graph
for (int i = 0; i < attributeRootNodeList.getLength(); ++i) {
final Element nodeElem = (Element) attributeRootNodeList.item(i);
// adds the attributes to the graph
if ("".equals(nodeElem.getAttribute("subgraph"))) {
graph.addAttributeNodes(nodeElem.getAttribute("name"));
}
// reference to a subgraph
else {
// create subgraph with a reference to the upper class
final Subgraph<?> subgraph = graph.addSubgraph(nodeElem.getAttribute("name"));
buildSubgraph(subgraph,nodeElem,doc);
}
}
} catch (XPathExpressionException | ParserConfigurationException | SAXException | IOException
| URISyntaxException e) {
LOGGER.warn("Exception in BuildEntityGraph::generateEntityGraphXPath,e);
}
return graph;
}
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