Java: add missing QLDoc for EJBJarXML.qll

java/ql/src/semmle/code/java/frameworks/javaee/ejb/EJBJarXML.qll

@@ -1,3 +1,8 @@
+/**
+ * Provides classes and predicates for working with
+ * EJB deployment descriptor XML files (`ejb-jar.xml`).
+ */
+
 import java
 
 /**
@@ -6,161 +11,222 @@ import java
 class EjbJarXMLFile extends XMLFile {
   EjbJarXMLFile() { this.getStem() = "ejb-jar" }
 
+  /** Gets the root `ejb-jar` XML element of this `ejb-jar.xml` file. */
   EjbJarRootElement getRoot() { result = this.getAChild() }
 
-  // Convenience methods.
+  /** Gets an `enterprise-beans` XML element nested within this `ejb-jar.xml` file. */
   EjbJarEnterpriseBeansElement getAnEnterpriseBeansElement() {
     result = this.getRoot().getAnEnterpriseBeansElement()
   }
 
+  /** Gets a `session` XML element nested within this `ejb-jar.xml` file. */
   EjbJarSessionElement getASessionElement() {
     result = this.getAnEnterpriseBeansElement().getASessionElement()
   }
 
+  /** Gets a `message-driven` XML element nested within this `ejb-jar.xml` file. */
   EjbJarMessageDrivenElement getAMessageDrivenElement() {
     result = this.getAnEnterpriseBeansElement().getAMessageDrivenElement()
   }
 
+  /** Gets an `entity` XML element nested within this `ejb-jar.xml` file. */
   EjbJarEntityElement getAnEntityElement() {
     result = this.getAnEnterpriseBeansElement().getAnEntityElement()
   }
 }
 
+/** The root `ejb-jar` XML element in an `ejb-jar.xml` file. */
 class EjbJarRootElement extends XMLElement {
   EjbJarRootElement() {
     this.getParent() instanceof EjbJarXMLFile and
     this.getName() = "ejb-jar"
   }
 
+  /** Gets an `enterprise-beans` child XML element of this root `ejb-jar` XML element. */
   EjbJarEnterpriseBeansElement getAnEnterpriseBeansElement() { result = this.getAChild() }
 }
 
+/**
+ * An `enterprise-beans` child XML element of the root
+ * `ejb-jar` XML element in an `ejb-jar.xml` file.
+ */
 class EjbJarEnterpriseBeansElement extends XMLElement {
   EjbJarEnterpriseBeansElement() {
     this.getParent() instanceof EjbJarRootElement and
     this.getName() = "enterprise-beans"
   }
 
+  /** Gets a `session` child XML element of this `enterprise-beans` XML element. */
   EjbJarSessionElement getASessionElement() {
     result = this.getAChild() and
     result.getName() = "session"
   }
 
+  /** Gets a `message-driven` child XML element of this `enterprise-beans` XML element. */
   EjbJarMessageDrivenElement getAMessageDrivenElement() {
     result = this.getAChild() and
     result.getName() = "message-driven"
   }
 
+  /** Gets an `entity` child XML element of this `enterprise-beans` XML element. */
   EjbJarEntityElement getAnEntityElement() {
     result = this.getAChild() and
     result.getName() = "entity"
   }
 }
 
+/**
+ * A child XML element of an `enterprise-beans` XML element within an `ejb-jar.xml` file.
+ *
+ * This is either a `message-driven` element, a `session` element, or an `entity` element.
+ */
 abstract class EjbJarBeanTypeElement extends XMLElement {
   EjbJarBeanTypeElement() { this.getParent() instanceof EjbJarEnterpriseBeansElement }
 
+  /** Gets an `ejb-class` child XML element of this bean type element. */
   XMLElement getAnEjbClassElement() {
     result = this.getAChild() and
     result.getName() = "ejb-class"
   }
 }
 
+/**
+ * A `session` child XML element of a bean type element in an `ejb-jar.xml` file.
+ */
 class EjbJarSessionElement extends EjbJarBeanTypeElement {
   EjbJarSessionElement() { this.getName() = "session" }
 
+  /** Gets a `business-local` child XML element of this `session` XML element. */
   XMLElement getABusinessLocalElement() {
     result = this.getAChild() and
     result.getName() = "business-local"
   }
 
+  /** Gets a `business-remote` child XML element of this `session` XML element. */
   XMLElement getABusinessRemoteElement() {
     result = this.getAChild() and
     result.getName() = "business-remote"
   }
 
+  /**
+   * Gets a business child XML element of this `session` XML element.
+   *
+   * This is either a `business-local` or `business-remote` element.
+   */
   XMLElement getABusinessElement() {
     result = getABusinessLocalElement() or
     result = getABusinessRemoteElement()
   }
 
+  /** Gets a `remote` child XML element of this `session` XML element. */
   XMLElement getARemoteElement() {
     result = this.getAChild() and
     result.getName() = "remote"
   }
 
+  /** Gets a `home` child XML element of this `session` XML element. */
   XMLElement getARemoteHomeElement() {
     result = this.getAChild() and
     result.getName() = "home"
   }
 
+  /** Gets a `local` child XML element of this `session` XML element. */
   XMLElement getALocalElement() {
     result = this.getAChild() and
     result.getName() = "local"
   }
 
+  /** Gets a `local-home` child XML element of this `session` XML element. */
   XMLElement getALocalHomeElement() {
     result = this.getAChild() and
     result.getName() = "local-home"
   }
 
+  /** Gets a `session-type` child XML element of this `session` XML element. */
   EjbJarSessionTypeElement getASessionTypeElement() { result = this.getAChild() }
 
+  /** Gets an `init-method` child XML element of this `session` XML element. */
   EjbJarInitMethodElement getAnInitMethodElement() { result = this.getAChild() }
 
-  // Convenience methods.
+  /**
+   * Gets a `method-name` child XML element of a `create-method`
+   * XML element nested within this `session` XML element.
+   */
   XMLElement getACreateMethodNameElement() {
     result = getAnInitMethodElement().getACreateMethodElement().getAMethodNameElement()
   }
 
+  /**
+   * Gets a `method-name` child XML element of a `bean-method`
+   * XML element nested within this `session` XML element.
+   */
   XMLElement getABeanMethodNameElement() {
     result = getAnInitMethodElement().getABeanMethodElement().getAMethodNameElement()
   }
 }
 
+/**
+ * A `message-drive` child XML element of a bean type element in an `ejb-jar.xml` file.
+ */
 class EjbJarMessageDrivenElement extends EjbJarBeanTypeElement {
   EjbJarMessageDrivenElement() { this.getName() = "message-driven" }
 }
 
+/**
+ * An `entity` child XML element of a bean type element in an `ejb-jar.xml` file.
+ */
 class EjbJarEntityElement extends EjbJarBeanTypeElement {
   EjbJarEntityElement() { this.getName() = "entity" }
 }
 
+/** A `session-type` child XML element of a `session` element in an `ejb-jar.xml` file. */
 class EjbJarSessionTypeElement extends XMLElement {
   EjbJarSessionTypeElement() {
     this.getParent() instanceof EjbJarSessionElement and
     this.getName() = "session-type"
   }
 
+  /** Holds if the value of this `session-type` XML element is "Stateful". */
   predicate isStateful() { this.getACharactersSet().getCharacters() = "Stateful" }
 
+  /** Holds if the value of this `session-type` XML element is "Stateless". */
   predicate isStateless() { this.getACharactersSet().getCharacters() = "Stateless" }
 }
 
+/** An `init-method` child XML element of a `session` element in an `ejb-jar.xml` file. */
 class EjbJarInitMethodElement extends XMLElement {
   EjbJarInitMethodElement() {
     this.getParent() instanceof EjbJarSessionElement and
     this.getName() = "init-method"
   }
 
+  /** Gets a `create-method` child XML element of this `init-method` XML element. */
   EjbJarCreateMethodElement getACreateMethodElement() {
     result = this.getAChild() and
     result.getName() = "create-method"
   }
 
+  /** Gets a `bean-method` child XML element of this `init-method` XML element. */
   EjbJarBeanMethodElement getABeanMethodElement() {
     result = this.getAChild() and
     result.getName() = "bean-method"
   }
 }
 
+/**
+ * A child XML element of an `init-method` element in an `ejb-jar.xml` file.
+ *
+ * This is either a `create-method` element, or a `bean-method` element.
+ */
 abstract class EjbJarInitMethodChildElement extends XMLElement {
+  /** Gets a `method-name` child XML element of this `create-method` or `bean-method` XML element. */
   XMLElement getAMethodNameElement() {
     result = this.getAChild() and
     result.getName() = "method-name"
   }
 }
 
+/** A `create-method` child XML element of an `init-method` element in an `ejb-jar.xml` file. */
 class EjbJarCreateMethodElement extends EjbJarInitMethodChildElement {
   EjbJarCreateMethodElement() {
     this.getParent() instanceof EjbJarInitMethodElement and
@@ -168,6 +234,7 @@ class EjbJarCreateMethodElement extends EjbJarInitMethodChildElement {
   }
 }
 
+/** A `bean-method` child XML element of an `init-method` element in an `ejb-jar.xml` file. */
 class EjbJarBeanMethodElement extends EjbJarInitMethodChildElement {
   EjbJarBeanMethodElement() {
     this.getParent() instanceof EjbJarInitMethodElement and