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Copyright 2010 JBoss Inc Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
 
 
 package org.drools.guvnor.client.modeldriven.ui.factPattern;
 
 import  org.drools.guvnor.client.common.DirtyableHorizontalPane;
 import  org.drools.guvnor.client.modeldriven.HumanReadable;
 import  org.drools.guvnor.client.modeldriven.ui.ConstraintValueEditor;
 
 import  com.google.gwt.core.client.GWT;
 import  com.google.gwt.event.dom.client.ChangeEvent;
 import  com.google.gwt.event.dom.client.ChangeHandler;
 import  com.google.gwt.user.client.ui.ListBox;
 import  com.google.gwt.user.client.ui.Widget;
 
 public class Connectives {
     private FactPattern                pattern;
     private RuleModeller               modeller;
     private Constants constants = ((Constants) GWT.create(Constants.class));


    
Returns the pattern.
 
     public FactPattern getPattern() {
         return pattern;
     }

    
Sets the pattern.
 
     public void setPattern(FactPattern pattern) {
         this.pattern = pattern;
     }

    
Returns the completions.
 
         return completions;
     }

    
Sets completions.
 
     public void setCompletions(SuggestionCompletionEngine completions) {
         this.completions = completions;
     }

    
Returns the modeller.
 
     public RuleModeller getModeller() {
         return modeller;
     }

    
Sets the modeller.
 
     public void setModeller(RuleModeller modeller) {
         this.modeller = modeller;
     }
 
     public Widget connectives(SingleFieldConstraint cString factClass) {
         if ( c.connectives != null && c.connectives.length > 0 ) {
             DirtyableHorizontalPane horiz = new DirtyableHorizontalPane();
             for ( int i = 0; i < c.connectives.length; i++ ) {
                 ConnectiveConstraint con = c.connectives[i];
                 horiz.add( connectiveOperatorDropDown( con, c.getFieldName() ) );
                 horiz.add( connectiveValueEditor( con, factClass, c.getFieldName() ) );
             }
             return horiz;
         } else {
             //nothing to do
             return null;
         }
 
     }
    private Widget connectiveValueEditor(final BaseSingleFieldConstraint conString factClassString fieldName) {
        String typeNumeric = this.modeller.getSuggestionCompletions().getFieldType( factClass, fieldName );
        return new ConstraintValueEditor(pattern, fieldName, con, this.modeller, typeNumeric,false);
    }
    private Widget connectiveOperatorDropDown(final ConnectiveConstraint conString fieldName) {
        String[] ops = completions.getConnectiveOperatorCompletions( pattern.factType, fieldName );
        final ListBox box = new ListBox();
        box.addItem(constants.pleaseChoose());
        for ( int i = 0; i < ops.length; i++ ) {
            String op = ops[i];
            box.addItem( HumanReadable.getOperatorDisplayName( op ), op );
            if ( op.equals( con.operator ) ) {
                box.setSelectedIndex( i + 1 );
            }
        }
		box.addChangeHandler(new ChangeHandler() {
			public void onChange(ChangeEvent event) {
				con.operator = box.getValue(box.getSelectedIndex());
			}
		});
        return box;
    }
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