/**
* Copyright (C) 2009-2013 BIMserver.org
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.bimserver.models.ifc2x3tc1;
/**
* <!-- begin-user-doc -->
* A representation of the model object '<em><b>Ifc Feature Element Subtraction</b></em>'.
* <!-- end-user-doc -->
*
* <p>
* The following features are supported:
* <ul>
* <li>{@link org.bimserver.models.ifc2x3tc1.IfcFeatureElementSubtraction#getVoidsElements <em>Voids Elements</em>}</li>
* </ul>
* </p>
*
* @see org.bimserver.models.ifc2x3tc1.Ifc2x3tc1Package#getIfcFeatureElementSubtraction()
* @model
* @generated
*/
public interface IfcFeatureElementSubtraction extends IfcFeatureElement {
/**
* Returns the value of the '<em><b>Voids Elements</b></em>' reference.
* It is bidirectional and its opposite is '{@link org.bimserver.models.ifc2x3tc1.IfcRelVoidsElement#getRelatedOpeningElement <em>Related Opening Element</em>}'.
* <!-- begin-user-doc -->
* <p>
* If the meaning of the '<em>Voids Elements</em>' reference isn't clear,
* there really should be more of a description here...
* </p>
* <!-- end-user-doc -->
* @return the value of the '<em>Voids Elements</em>' reference.
* @see #isSetVoidsElements()
* @see #unsetVoidsElements()
* @see #setVoidsElements(IfcRelVoidsElement)
* @see org.bimserver.models.ifc2x3tc1.Ifc2x3tc1Package#getIfcFeatureElementSubtraction_VoidsElements()
* @see org.bimserver.models.ifc2x3tc1.IfcRelVoidsElement#getRelatedOpeningElement
* @model opposite="RelatedOpeningElement" unsettable="true"
* @generated
*/
IfcRelVoidsElement getVoidsElements();
/**
* Sets the value of the '{@link org.bimserver.models.ifc2x3tc1.IfcFeatureElementSubtraction#getVoidsElements <em>Voids Elements</em>}' reference.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @param value the new value of the '<em>Voids Elements</em>' reference.
* @see #isSetVoidsElements()
* @see #unsetVoidsElements()
* @see #getVoidsElements()
* @generated
*/
void setVoidsElements(IfcRelVoidsElement value);
/**
* Unsets the value of the '{@link org.bimserver.models.ifc2x3tc1.IfcFeatureElementSubtraction#getVoidsElements <em>Voids Elements</em>}' reference.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #isSetVoidsElements()
* @see #getVoidsElements()
* @see #setVoidsElements(IfcRelVoidsElement)
* @generated
*/
void unsetVoidsElements();
/**
* Returns whether the value of the '{@link org.bimserver.models.ifc2x3tc1.IfcFeatureElementSubtraction#getVoidsElements <em>Voids Elements</em>}' reference is set.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @return whether the value of the '<em>Voids Elements</em>' reference is set.
* @see #unsetVoidsElements()
* @see #getVoidsElements()
* @see #setVoidsElements(IfcRelVoidsElement)
* @generated
*/
boolean isSetVoidsElements();
} // IfcFeatureElementSubtraction