eu.mihosoft.vmf.vmtemplates.impl.setter-no-collection-cross-reference.vm Maven / Gradle / Ivy

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#*
 * Copyright 2017-2024 Michael Hoffer . All rights reserved.
 * Copyright 2017-2019 Goethe Center for Scientific Computing, University Frankfurt. All rights reserved.
 *
 * 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.
 *
 * If you use this software for scientific research then please cite the following publication(s):
 *
 * M. Hoffer, C. Poliwoda, & G. Wittum. (2013). Visual reflection library:
 * a framework for declarative GUI programming on the Java platform.
 * Computing and Visualization in Science, 2013, 16(4),
 * 181–192. http://doi.org/10.1007/s00791-014-0230-y
 *#
#if(${prop.propType} != "COLLECTION" && !${prop.container} && !${prop.contained} && ${prop.crossRefProperty})
  // this property holds a (cross-)reference which is indicated by the @Refers annotation (see model type ${type.typeName})
  // ----------------------------------------
  // - cross-ref: 
  //   -> prop:
  //      -> name:       ${prop.name}  
  //      -> propType:   ${prop.typeName}      
  //   -> opposite:      true, ${prop.referenceInfo.opposite.typeName}.${prop.referenceInfo.opposite.name}
  //      -> propType:   ${prop.referenceInfo.opposite.typeName}
  //      -> collection: false
  // ----------------------------------------

  // ----------------------------------------
  // return early if identical value has been set
  // ----------------------------------------
  if (this.__vmf_prop_${prop.name} == ${prop.name}) {
    return;
  }
  // ----------------------------------------


#if(${prop.referenceInfo.opposite.propType} == "COLLECTION")## collection opposite 

  // ----------------------------------------
  // store the old value ...
  // ----------------------------------------
  ${prop.typeName} oldValue = this.__vmf_prop_${prop.name};
  // ----------------------------------------

  // ----------------------------------------
  // remove this object as reference from old value 
  // ----------------------------------------
  if(oldValue!=null) {
## String eventInfo = oldValue.get${prop.referenceInfo.opposite.nameWithUpperCase}().getEventInfo();
## oldValue.get${prop.referenceInfo.opposite.nameWithUpperCase}().setEventInfo(${VMFPKG_INT}.ChangeInternal.CHANGE_TYPE_CROSS_REF);
    oldValue.get${prop.referenceInfo.opposite.nameWithUpperCase}().remove(this);
## oldValue.get${prop.referenceInfo.opposite.nameWithUpperCase}().setEventInfo(eventInfo);
  }
  // ----------------------------------------

  // ----------------------------------------
  // set the new value + fire change event
  // ----------------------------------------
  this.__vmf_prop_$prop.name = $prop.name;
  _vmf_firePropertyChangeIfListenersArePresent("$prop.name", oldValue, this.__vmf_prop_$prop.name);
  // ----------------------------------------

  // ----------------------------------------
  // registering with the opposite collection
  // ----------------------------------------
  if(this.__vmf_prop_${prop.name}!=null) {
    String eventInfo = this.__vmf_prop_${prop.name}.get${prop.referenceInfo.opposite.nameWithUpperCase}().getEventInfo();
    this.__vmf_prop_${prop.name}.get${prop.referenceInfo.opposite.nameWithUpperCase}().setEventInfo(${VMFPKG_INT}.ChangeInternal.CHANGE_TYPE_CROSS_REF);
    this.__vmf_prop_${prop.name}.get${prop.referenceInfo.opposite.nameWithUpperCase}().add(this);
    this.__vmf_prop_${prop.name}.get${prop.referenceInfo.opposite.nameWithUpperCase}().setEventInfo(eventInfo);
  }    
  // ----------------------------------------
#else##                                                        collection opposite
  // ----------------------------------------
  // set the new value
  // ----------------------------------------
  $prop.typeName oldValue = this.__vmf_prop_$prop.name;
  this.__vmf_prop_$prop.name = $prop.name;
  // ----------------------------------------

  // ----------------------------------------
  // remove this object as reference from old value 
  // ----------------------------------------
  if(oldValue!=null) {
    oldValue.set${prop.referenceInfo.opposite.nameWithUpperCase}(null);
  }
  // ----------------------------------------

  // ----------------------------------------
  // fire property change event
  // ----------------------------------------
  _vmf_firePropertyChangeIfListenersArePresent("$prop.name", oldValue, this.__vmf_prop_$prop.name);

  // ----------------------------------------
  // register this with opposite if new value is not null
  // ----------------------------------------
  if(this.__vmf_prop_${prop.name}!=null) {
    Object refOldVal = ((__VMF_TYPE_${prop.type.implementation.typeName})this.__vmf_prop_${prop.name}).__vmf_get_prop_${prop.referenceInfo.opposite.name}();
    ((__VMF_TYPE_${prop.type.implementation.typeName})this.__vmf_prop_${prop.name}).__vmf_set_prop_${prop.referenceInfo.opposite.name}(this);
    // fire property change event
    if(refOldVal != this) {
      ((__VMF_TYPE_${prop.type.implementation.typeName})this.__vmf_prop_${prop.name})._vmf_firePropertyChangeIfListenersArePresent("${prop.referenceInfo.opposite.name}", refOldVal, this, ${VMFPKG_INT}.ChangeInternal.CHANGE_TYPE_CROSS_REF);
    }
  }
  // ----------------------------------------
#end##                                                         collection opposite 

#end##