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Revision 0dcf41f3

Added by Patrick Plitzner almost 5 years ago

ref #8263 Cache child terms in content provider

View differences:

eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/editor/definedterm/TermDtoContentProvider.java
8 8 
*/
9 9 
package eu.etaxonomy.taxeditor.editor.definedterm;
10 10 

  		




  
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import java.util.ArrayList;


  		




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import java.util.Collection;


  		




  
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import java.util.HashMap;


  		




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import java.util.HashSet;


  		




  
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import java.util.Map;


  		




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import org.eclipse.jface.viewers.TreeNodeContentProvider;


  		




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  ......




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 */


  		




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public class TermDtoContentProvider extends TreeNodeContentProvider {


  		




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	@Override


  		




  
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    private Map<TermVocabularyDto, Collection<TermDto>> vocabularyToChildTermMap = new HashMap<>();


  		




  
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    @Override


  		




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	public Object[] getElements(Object inputElement) {


  		




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		Collection<TermVocabularyDto> inputElements = (Collection<TermVocabularyDto>) inputElement;


  		




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		return inputElements.toArray();


  		




  ......




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	public Object[] getChildren(Object parentElement) {


  		




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	    Collection<TermDto> children = new HashSet<>();


  		




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	    if(parentElement instanceof TermVocabularyDto){


  		




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	        children.addAll(CdmStore.getService(IVocabularyService.class).getCompleteTermHierarchy((TermVocabularyDto)parentElement));


  		




  
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	        children.addAll(getChildTerms((TermVocabularyDto)parentElement));


  		




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	    } else if(parentElement instanceof TermDto){


  		




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	            if(((TermDto) parentElement).getIncludes()!=null){


  		




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	                children.addAll(((TermDto) parentElement).getIncludes());


  		




  ......




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		return false;


  		




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	}


  		




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    public Collection<? extends TermDto> getChildTerms(TermVocabularyDto voc) {


  		




  
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        Collection<TermDto> children = vocabularyToChildTermMap.get(voc);


  		




  
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        if(children==null){


  		




  
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            children = new ArrayList<>(CdmStore.getService(IVocabularyService.class).getCompleteTermHierarchy(voc));


  		




  
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            vocabularyToChildTermMap.put(voc, children);


  		




  
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        }


  		




  
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        return children;


  		




  
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    }


  		




  
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    public void removeVocabularyFromCache(TermVocabularyDto voc){


  		




  
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        vocabularyToChildTermMap.remove(voc);


  		




  
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    }


  		




  
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}


  		












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