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Document purpose of shared methods

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Benjamin Davies 2024-03-20 16:08:43 +13:00
parent 90a88ce4ee
commit 83255431f7
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1 changed files with 23 additions and 0 deletions
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src/net/sourceforge/plantuml/cheneer/ChenEerDiagram.java
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@ -50,10 +50,22 @@ public class ChenEerDiagram extends AbstractEntityDiagram {
private final Stack<Entity> ownerStack = new Stack<Entity>();
/**
* Pushes the owner of the following attributes.
*
* @see #peekOwner()
* @param group the entity that owns the following attributes
*/
public void pushOwner(Entity group) {
ownerStack.push(group);
}
/**
* Pops an attribute owner from the stack. See also {@link #peekOwner()}.
*
* @see #peekOwner()
* @return true if an owner was popped, false if the stack was empty
*/
public boolean popOwner() {
if (ownerStack.isEmpty()) {
return false;
@ -62,6 +74,17 @@ public class ChenEerDiagram extends AbstractEntityDiagram {
return true;
}
/**
* Returns the owner of the current attribute.
*
* <p>
* This is used to link attributes based on their lexical position (how they
* appear in sources) without nesting the entities (like how packages are
* done). It is for this reason that we can't use CucaDiagram.getCurrentGroup,
* as that method nests the entities.
*
* @return the owner of the current attribute, or null if there is no owner
*/
public Entity peekOwner() {
if (ownerStack.isEmpty()) {
return null;