Searching Hierarchical tree using Find tree node
In hierarchical tree using find_tree_node when i search the value it is taking the search value as a string and returns the node that of previous node value. for example
Suppose when i am searching for node value 18 ,but it takes the some other node value of (1883).
The tree structure is
1
2
1883
3
18
The code used is
p_node := ftree.get_tree_node_property ('tree_block.tree',:system.trigger_node,ftree.node_value);
current_node := Ftree.Find_Tree_Node(htree,
p_node,
Ftree.FIND_NEXT,
Ftree.NODE_VALUE,
Ftree.ROOT_NODE,
Ftree.ROOT_NODE);
Hi!
You can use your restricting subquery in a start with clause. Something like
start with node_parent is null and some_field in (select ...)
Or you can eliminate the join and use where clause.
Hope this helps.
Sergey.
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first off i'm a college student. i'm not that good at java... we got this CA in class and try as i might i just can't get my head around it
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like this
startingdir
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dir11 //subfolder of dir1
dir111 //subfolder of dir11
dir12 //subfolder of dir1
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Tree.java
import java.util.Iterator;
import java.util.LinkedList;
import java.util.ListIterator;
import java.util.NoSuchElementException;
import java.util.Deque;
public class Tree<E> {
// Each Tree object is an unordered tree whose
// elements are arbitrary objects of type E.
// This tree is represented by a reference to its root node (root), which
// is null if the tree is empty. Each tree node contains a link to its
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private Node root;
//////////// Constructor ////////////
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//////////// Accessors ////////////
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System.out.println(test.toString());Denis,
Do you have [red hair|http://www.dennisthemenace.com/]? ;-)
My advise with the tree structure is pretty short and sweet... make each node remember
1. it's parent
2. it's children
That's how the file system (inode) actually works.
<quote>
The exact reasoning for designating these as "i" nodes is unsure. When asked, Unix pioneer Dennis Ritchie replied:[citation needed]
In truth, I don't know either. It was just a term that we started to use. "Index" is my best guess, because of the
slightly unusual file system structure that stored the access information of files as a flat array on the disk, with all
the hierarchical directory information living aside from this. Thus the i-number is an index in this array, the
i-node is the selected element of the array. (The "i-" notation was used in the 1st edition manual; its hyphen
became gradually dropped).</quote> -
Searching for a certain binary tree from another tree........
I have been struggling for a tree search problem for a good while. Now I decide to ask you experts for a better solution :-).
Given a binary tree A. We know that every Node of A has two pointers. Leaves of A can be tested by if(node.right = =node). Namely, The right pointer of every leaf node points to itself. (The left pointer points to the node sits on the left side of the leaf in the same depth. and the leafmost node points to the root. I do no think this information is important, am i right?).
Tree B has a similar structure.
The node used for both A and B.
Node{
Node left;
Node right;
My question is how to test if tree B is a subtree of A and if it is, returns the node in A that corresponds to the root of B. otherwise, return null.
So, the method should look like:
public Node search(Node rootOfA, Node rootOfB){
I know a simple recursive fuction can do the job. The question is all about the effciency....
I am wonderring if this is some kind of well-researched problem and if there has been a classical solution.
Anyone knows of that? Any friend can give a sound solution?
Thank you all in advance.
Jason
Message was edited by:
since81I'm not too sure if this would help but there goes.
I think a recursive function will be the easiest to implement (but not the most efficient). In terms of recursive function if you really want to add performance. You could implement your own stack and replace the recursive function with the use of this stack (since really the benefit of recursive function is that it manages its own stack). A non-recursive function with customized well implemented stack will be much more efficient but your code will become more ugly too (due to so many things to keep track of).
Is tree B a separate instance of the binary tree? If yes then how can Tree B be a subset/subtree of tree A (since they are two separate "trees" or instances of the binary tree). If you wish to compare the data /object reference of Tree B's root node to that of Tree A's then the above method would be the most efficient according to my knowledge. You might have to use a Queue but I doubt it. Stack should be able to replace your recursive function to a better more efficient subroutine but you will have to manage using your own stack (as mentioned above). Your stack will behave similar to the recursive stack to keep track of the child/descendant/parent/root node and any other references that you may use otherwise.
:) -
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I have a tree that I have put on a search box to navigate the tree and select nodes on the tree based on the search string.
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I use a search on the tree and then
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SYSTEM.TRIGGER_NODE is the node the user clicked on. SYSTEM.TRIGGER_NODE returns a value of type NODE.
No programmatic action will cause the When-Tree-Node-Selected trigger to fire. Only end-user action will generate an event.So your programmatic setting of the trigger node does not cause the trigger to fire, so :system.trigger_node is not populated. But the value what you think :system.trigger_node should be in your case would be find_node , isn't it?
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Building tree using view crateria in view objects
suppose that i have the following tables "class" ,"group" and "item".
items in table "item" belong to groups in table "group" and groups belong to classes in table "class" .
suppose there is another table called "selling_basket" that contains an id for the customer and also a foreign key for rows in item table for the items he sold and a "Customer" table that contains customers id and other informations.
suppose that i want to build an JSF page that contains a table from a view based on the "customer" table and a tree of herarichy - class
|_group1
|_item1
|_item2
-class2
|_group2
|_item3
|_group3
and when i click on a row on table customer the tree only display the herarichy for items that this customer sold just.i solve the probel the description as follow :
. the problem : the problem is that when we use the tree model component with the scenario of filtration on the child nodes, we do a normal transactions of steps on the knowledge that the tree will use the master detail behavior as in table component and other ADF Master-details behaviors, so we build two view criteria one on employee and the other on department with the scenario of displaying only the department who has employees with salary equal some certain value, and only shows the employees who has salary equal that value, and on our code we apply the two criteria on the two view objects with the same value we entered to search for , the scenario works well for the top level nodes, but for child nodes it seems it doesn’t work, the behavior make us walk around our selves for why this happened. By debugging options and Tracing what SQL statements that it executes we found that the system execute two statements on the employee view object one with the bind value with the same we inserted and the other with null value, and we notice that the name of the second view object executed is not what we apply the view criteria for(departmentEO_employeeEO_emo_dept_FK_employeeView).
.The solution: we notice that the tree component doesn’t use master detail behavior as in tables, and instead of that it uses the View link assessors (the run time generated view object departmentEO_employeeEO_emo_dept_FK_employeeView ), to get the detailed items, so we should override the action of the View link assessor.
To deal with that we generate the view object rowimpl and viewimpl java classes, in the rowimpl class there is a method to call the link assessors with the following code:
public RowIterator getEmployeesView()
this.getAttributeInternal(EMPLOYEESVIEW);
We write our code:
public RowIterator getEmployeesView()
System.out.println("Here");
ViewObject s=((DepartmentsViewImpl)this.getViewObject()).getViewLinks()[0].getDestination();//we get the employee object by using the view link
// between department and employee
// then we apply the view criteria to that view object and return it as view link
System.out.println("row number "+s.getEstimatedRowCount());
ViewCriteria evc=s.getViewCriteriaManager().getViewCriteria("EmployeesViewCriteria");
s.ensureVariableManager().setVariableValue("nSal",((DepartmentsViewImpl)this.getViewObject()).getnSal());
s.applyViewCriteria(evc);
s.executeQuery();
return s;
Notice that we use the employee view object getted by the view link instead of the master details.
Regards
Mohammad.b.yaseen
Sep 26 2011 @ 11:43
J2EE Team
RealSoft
for more info this the application url :
http://www.4shared.com/file/lgeaYWXa/TreeTestApplication1.html
notice that i diidn't attach the database with the project so you can connect to the local db
Edited by: mohammad.j.b.yaseen on Sep 26, 2011 12:13 PM -
JDev10g: Using a Tree component based on different queries.
Hello,
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ALV Tree using Function Modules
Hi,
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Also should be able to handle the events.
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report bcalv_tree_demo.
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class cl_gui_cfw definition load.
data tree1 type ref to cl_gui_alv_tree.
data mr_toolbar type ref to cl_gui_toolbar.
include <icon>.
include bcalv_toolbar_event_receiver.
include bcalv_tree_event_receiver.
data: toolbar_event_receiver type ref to lcl_toolbar_event_receiver.
data: gt_sflight type sflight occurs 0, "Output-Table
gt_fieldcatalog type lvc_t_fcat, "Fieldcatalog
ok_code like sy-ucomm. "OK-Code
start-of-selection.
end-of-selection.
call screen 100.
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* process before output
module pbo output.
set pf-status 'MAIN100'.
if tree1 is initial.
perform init_tree.
endif.
call method cl_gui_cfw=>flush.
endmodule. " PBO OUTPUT
*& Module PAI INPUT
* process after input
module pai input.
case ok_code.
when 'EXIT' or 'BACK' or 'CANC'.
perform exit_program.
when others.
call method cl_gui_cfw=>dispatch.
endcase.
clear ok_code.
call method cl_gui_cfw=>flush.
endmodule. " PAI INPUT
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* build fieldcatalog for structure sflight
form build_fieldcatalog.
* get fieldcatalog
call function 'LVC_FIELDCATALOG_MERGE'
exporting
i_structure_name = 'SFLIGHT'
changing
ct_fieldcat = gt_fieldcatalog.
* change fieldcatalog
data: ls_fieldcatalog type lvc_s_fcat.
loop at gt_fieldcatalog into ls_fieldcatalog.
case ls_fieldcatalog-fieldname.
when 'CARRID' or 'CONNID' or 'FLDATE'.
ls_fieldcatalog-no_out = 'X'.
ls_fieldcatalog-key = ''.
when 'PRICE' or 'SEATSOCC' or 'SEATSMAX' or 'PAYMENTSUM'.
ls_fieldcatalog-do_sum = 'X'.
endcase.
modify gt_fieldcatalog from ls_fieldcatalog.
endloop.
endform. " build_fieldcatalog
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* build hierarchy-header-information
* -->P_L_HIERARCHY_HEADER strucxture for hierarchy-header
form build_hierarchy_header changing
p_hierarchy_header type treev_hhdr.
p_hierarchy_header-heading = 'Hierarchy Header'. "#EC NOTEXT
p_hierarchy_header-tooltip =
'This is the Hierarchy Header !'. "#EC NOTEXT
p_hierarchy_header-width = 30.
p_hierarchy_header-width_pix = ''.
endform. " build_hierarchy_header
*& Form exit_program
* free object and leave program
form exit_program.
call method tree1->free.
leave program.
endform. " exit_program
*& Form build_header
* build table for html_header
* --> p1 text
* <-- p2 text
form build_comment using
pt_list_commentary type slis_t_listheader
p_logo type sdydo_value.
data: ls_line type slis_listheader.
* LIST HEADING LINE: TYPE H
clear ls_line.
ls_line-typ = 'H'.
* LS_LINE-KEY: NOT USED FOR THIS TYPE
ls_line-info = 'ALV-tree-demo: flight-overview'. "#EC NOTEXT
append ls_line to pt_list_commentary.
* STATUS LINE: TYPE S
clear ls_line.
ls_line-typ = 'S'.
ls_line-key = 'valid until'. "#EC NOTEXT
ls_line-info = 'January 29 1999'. "#EC NOTEXT
append ls_line to pt_list_commentary.
ls_line-key = 'time'.
ls_line-info = '2.00 pm'. "#EC NOTEXT
append ls_line to pt_list_commentary.
* ACTION LINE: TYPE A
clear ls_line.
ls_line-typ = 'A'.
* LS_LINE-KEY: NOT USED FOR THIS TYPE
ls_line-info = 'actual data'. "#EC NOTEXT
append ls_line to pt_list_commentary.
p_logo = 'ENJOYSAP_LOGO'.
endform.
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* text
* --> p1 text
* <-- p2 text
form create_hierarchy.
data: ls_sflight type sflight,
lt_sflight type sflight occurs 0.
* get data
select * from sflight into table lt_sflight
UP TO 200 ROWS .
sort lt_sflight by carrid connid fldate.
* add data to tree
data: l_carrid_key type lvc_nkey,
l_connid_key type lvc_nkey,
l_last_key type lvc_nkey.
loop at lt_sflight into ls_sflight.
on change of ls_sflight-carrid.
perform add_carrid_line using ls_sflight
changing l_carrid_key.
endon.
on change of ls_sflight-connid.
perform add_connid_line using ls_sflight
l_carrid_key
changing l_connid_key.
endon.
perform add_complete_line using ls_sflight
l_connid_key
changing l_last_key.
endloop.
* calculate totals
call method tree1->update_calculations.
* this method must be called to send the data to the frontend
call method tree1->frontend_update.
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* add hierarchy-level 1 to tree
* -->P_LS_SFLIGHT sflight
* -->P_RELEATKEY relatkey
* <-->p_node_key new node-key
form add_carrid_line using ps_sflight type sflight
p_relat_key type lvc_nkey
changing p_node_key type lvc_nkey.
data: l_node_text type lvc_value,
ls_sflight type sflight.
* set item-layout
data: lt_item_layout type lvc_t_layi,
ls_item_layout type lvc_s_layi.
ls_item_layout-t_image = '@3P@'.
ls_item_layout-fieldname = tree1->c_hierarchy_column_name.
ls_item_layout-style =
cl_gui_column_tree=>style_intensifd_critical.
append ls_item_layout to lt_item_layout.
* add node
l_node_text = ps_sflight-carrid.
call method tree1->add_node
exporting
i_relat_node_key = p_relat_key
i_relationship = cl_gui_column_tree=>relat_last_child
i_node_text = l_node_text
is_outtab_line = ls_sflight
it_item_layout = lt_item_layout
importing
e_new_node_key = p_node_key.
endform. " add_carrid_line
*& Form add_connid_line
* add hierarchy-level 2 to tree
* -->P_LS_SFLIGHT sflight
* -->P_RELEATKEY relatkey
* <-->p_node_key new node-key
form add_connid_line using ps_sflight type sflight
p_relat_key type lvc_nkey
changing p_node_key type lvc_nkey.
data: l_node_text type lvc_value,
ls_sflight type sflight.
* set item-layout
data: lt_item_layout type lvc_t_layi,
ls_item_layout type lvc_s_layi.
ls_item_layout-t_image = '@3Y@'.
ls_item_layout-style =
cl_gui_column_tree=>style_intensified.
ls_item_layout-fieldname = tree1->c_hierarchy_column_name.
append ls_item_layout to lt_item_layout.
* add node
l_node_text = ps_sflight-connid.
call method tree1->add_node
exporting
i_relat_node_key = p_relat_key
i_relationship = cl_gui_column_tree=>relat_last_child
i_node_text = l_node_text
is_outtab_line = ls_sflight
it_item_layout = lt_item_layout
importing
e_new_node_key = p_node_key.
endform. " add_connid_line
*& Form add_cmplete_line
* add hierarchy-level 3 to tree
* -->P_LS_SFLIGHT sflight
* -->P_RELEATKEY relatkey
* <-->p_node_key new node-key
form add_complete_line using ps_sflight type sflight
p_relat_key type lvc_nkey
changing p_node_key type lvc_nkey.
data: l_node_text type lvc_value.
* set item-layout
data: lt_item_layout type lvc_t_layi,
ls_item_layout type lvc_s_layi.
ls_item_layout-fieldname = tree1->c_hierarchy_column_name.
ls_item_layout-class = cl_gui_column_tree=>item_class_checkbox.
ls_item_layout-editable = 'X'.
append ls_item_layout to lt_item_layout.
l_node_text = ps_sflight-fldate.
call method tree1->add_node
exporting
i_relat_node_key = p_relat_key
i_relationship = cl_gui_column_tree=>relat_last_child
is_outtab_line = ps_sflight
i_node_text = l_node_text
it_item_layout = lt_item_layout
importing
e_new_node_key = p_node_key.
endform. " add_complete_line
*& Form register_events
* text
* --> p1 text
* <-- p2 text
form register_events.
* define the events which will be passed to the backend
data: lt_events type cntl_simple_events,
l_event type cntl_simple_event.
* define the events which will be passed to the backend
l_event-eventid = cl_gui_column_tree=>eventid_expand_no_children.
append l_event to lt_events.
l_event-eventid = cl_gui_column_tree=>eventid_checkbox_change.
append l_event to lt_events.
l_event-eventid = cl_gui_column_tree=>eventid_header_context_men_req.
append l_event to lt_events.
l_event-eventid = cl_gui_column_tree=>eventid_node_context_menu_req.
append l_event to lt_events.
l_event-eventid = cl_gui_column_tree=>eventid_item_context_menu_req.
append l_event to lt_events.
l_event-eventid = cl_gui_column_tree=>eventid_header_click.
append L_EVENT to lt_events.
l_event-eventid = cl_gui_column_tree=>eventid_item_keypress.
append L_EVENT to lt_events.
call method tree1->set_registered_events
exporting
events = lt_events
exceptions
cntl_error = 1
cntl_system_error = 2
illegal_event_combination = 3.
if sy-subrc <> 0.
message x208(00) with 'ERROR'. "#EC NOTEXT
endif.
* set Handler
data: l_event_receiver type ref to lcl_tree_event_receiver.
create object l_event_receiver.
set handler l_event_receiver->handle_node_ctmenu_request
for tree1.
set handler l_event_receiver->handle_node_ctmenu_selected
for tree1.
set handler l_event_receiver->handle_item_ctmenu_request
for tree1.
set handler l_event_receiver->handle_item_ctmenu_selected
for tree1.
endform. " register_events
*& Form change_toolbar
* text
* --> p1 text
* <-- p2 text
form change_toolbar.
* get toolbar control
call method tree1->get_toolbar_object
importing
er_toolbar = mr_toolbar.
check not mr_toolbar is initial.
* add seperator to toolbar
call method mr_toolbar->add_button
exporting
fcode = ''
icon = ''
butn_type = cntb_btype_sep
text = ''
quickinfo = 'This is a Seperator'. "#EC NOTEXT
* add Standard Button to toolbar (for Delete Subtree)
call method mr_toolbar->add_button
exporting
fcode = 'DELETE'
icon = '@18@'
butn_type = cntb_btype_button
text = ''
quickinfo = 'Delete subtree'. "#EC NOTEXT
* add Dropdown Button to toolbar (for Insert Line)
call method mr_toolbar->add_button
exporting
fcode = 'INSERT_LC'
icon = '@17@'
butn_type = cntb_btype_dropdown
text = ''
quickinfo = 'Insert Line'. "#EC NOTEXT
* set event-handler for toolbar-control
create object toolbar_event_receiver.
set handler toolbar_event_receiver->on_function_selected
for mr_toolbar.
set handler toolbar_event_receiver->on_toolbar_dropdown
for mr_toolbar.
endform. " change_toolbar
*& Form init_tree
* text
* --> p1 text
* <-- p2 text
FORM init_tree.
* create fieldcatalog for structure sflight
perform build_fieldcatalog.
* create container for alv-tree
data: l_tree_container_name(30) type c,
l_custom_container type ref to cl_gui_custom_container.
l_tree_container_name = 'TREE1'.
if sy-batch is initial.
create object l_custom_container
exporting
container_name = l_tree_container_name
exceptions
cntl_error = 1
cntl_system_error = 2
create_error = 3
lifetime_error = 4
lifetime_dynpro_dynpro_link = 5.
if sy-subrc <> 0.
message x208(00) with 'ERROR'. "#EC NOTEXT
endif.
endif.
* create tree control
create object tree1
exporting
parent = l_custom_container
node_selection_mode = cl_gui_column_tree=>node_sel_mode_single
item_selection = 'X'
no_html_header = ''
no_toolbar = ''
exceptions
cntl_error = 1
cntl_system_error = 2
create_error = 3
lifetime_error = 4
illegal_node_selection_mode = 5
failed = 6
illegal_column_name = 7.
if sy-subrc <> 0.
message x208(00) with 'ERROR'. "#EC NOTEXT
endif.
* create Hierarchy-header
data l_hierarchy_header type treev_hhdr.
perform build_hierarchy_header changing l_hierarchy_header.
* create info-table for html-header
data: lt_list_commentary type slis_t_listheader,
l_logo type sdydo_value.
perform build_comment using
lt_list_commentary
l_logo.
* repid for saving variants
data: ls_variant type disvariant.
ls_variant-report = sy-repid.
* create emty tree-control
call method tree1->set_table_for_first_display
exporting
is_hierarchy_header = l_hierarchy_header
it_list_commentary = lt_list_commentary
i_logo = l_logo
i_background_id = 'ALV_BACKGROUND'
i_save = 'A'
is_variant = ls_variant
changing
it_outtab = gt_sflight "table must be emty !!
it_fieldcatalog = gt_fieldcatalog.
* create hierarchy
perform create_hierarchy.
* add own functioncodes to the toolbar
perform change_toolbar.
* register events
perform register_events.
* adjust column_width
call method tree1->COLUMN_OPTIMIZE.
ENDFORM. " init_tree
regards,
venu. -
Macking button to expand the tree and collapse tree and another to add node
macking button to expand the tree and collapse tree and another to add node and saving the changes in the database ( this is problem)
and finally delete node from database
so what is proper code for those buttons
thanks my mail is :
[email protected]Hello,
Use the ftree package's functions
code to expand all nodes:
PROCEDURE explose_tree IS
node ftree.node;
htree ITEM;
state varchar2(30);
BEGIN
-- search the tree ID --
htree := Find_Item('BL_TREE.TREE_1');
-- search the root --
node := Ftree.Find_Tree_Node(htree, '');
-- expand all nodes --
WHILE NOT Ftree.ID_NULL(node) LOOP
state := Ftree.Get_Tree_Node_Property(htree, node, Ftree.NODE_STATE);
IF state = Ftree.COLLAPSED_NODE THEN
Ftree.Set_Tree_Node_Property(htree, node, Ftree.NODE_STATE, Ftree.EXPANDED_NODE);
END IF;
node := Ftree.Find_Tree_Node(htree, '', ftree.find_NEXT,Ftree.NODE_LABEL,'', node);
END LOOP;
END;and to collapse all nodes:
PROCEDURE Implose_tree IS
node ftree.node;
htree ITEM;
state varchar2(30);
BEGIN
-- search the root ID --
htree := Find_Item('BL_TREE.TREE_1');
-- search the root --
node := Ftree.Find_Tree_Node(htree, '');
-- Collapse all nodes --
WHILE NOT ftree.ID_NULL(node) LOOP
state := Ftree.Get_Tree_Node_Property(htree, node, Ftree.NODE_STATE);
IF state = Ftree.EXPANDED_NODE THEN
Ftree.Set_Tree_Node_Property(htree, node, Ftree.NODE_STATE, Ftree.COLLAPSED_NODE);
END IF;
node := Ftree.Find_Tree_Node(htree, '', Ftree.FIND_NEXT,Ftree.NODE_LABEL, '', node);
END LOOP;
END; Francois -
FPN Could not load or refresh node Tree creation failed on node: pcd:-Error
Hi,
I´m configuring a FPN using CRM Java as a producer and SAP Portal as a consumer, the SSO from SAP Portal to CRM Java is working fine, but we are having this Error when trying to Expand Content Administration > Portal Content > NetWeaver Content Producers > MyProducer System
Could not load or refresh node Tree creation failed on node: pcd:NetWeaver_content_producers/........
Also in Identity Management I can see the Federated Data Source but when search for roles no rol is retrieved and returns two messages.
Last Search might be innacurate
No element Found
Has somebody faced this Error?
Thanx in Advanced!
Kind Regards,
Gerardo JHi KRISHNA,
Check the below thread and notes mentioned in that
Re: Tree creation failed on node: pcd:portal_content
Koti Reddy -
Generate a navigator Tree without Blockname as node
Hi
I am generating navigator/hierarchical tree with simple master-detail data.
I would like only the records to appear in the tree, and not the blockname, as it is really a simple hierarchy with only few records.
How can I do that?
Now:
+DEP
+ Accounting
+ EMP
Miller
+ Research
+ EMP
Smith
Allen
My goal:
+DEP (not even necessarily)
+ Accounting
Miller
+ Research
Smith
Allen
By the way, is there anyway I can make Accounting and Reasearch bold an not Miller and Allen?
Thanks
Karine
PS: I am working with Designer 6i, 6.5.96.5.6
Edited by: Karine on Feb 24, 2009 1:24 PMI got the refreshing of the tree part by myself. One needs to call the refresh method on the GroupingCollection2 and HierarchicalCollectionView objects when the arraycollection has just arrived from the database.
But I still havent been able to figure out how to highlight or open a tree node programatically. I am repeating that using (calling / setting) tree.expandItem() and tree.openItems is not helping me. Plz somebody help.
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