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   *  to you under the Apache License, Version 2.0 (the
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  package org.apache.cayenne.reflect.generic;
  
  import org.apache.cayenne.Fault;
  import org.apache.cayenne.Persistent;
  import org.apache.cayenne.ValueHolder;
  import org.apache.cayenne.map.ObjRelationship;
  import org.apache.cayenne.reflect.ArcProperty;
  import org.apache.cayenne.reflect.ClassDescriptor;
  import org.apache.cayenne.reflect.PropertyException;
  import org.apache.cayenne.reflect.PropertyVisitor;
  import org.apache.cayenne.reflect.ToManyProperty;
  
  /**
   * @since 3.0
   */
  class PersistentObjectToManyProperty extends PersistentObjectBaseProperty implements ToManyProperty {
  
      protected ObjRelationship relationship;
      protected String reverseName;
      protected String reverseDbPath;
      protected ClassDescriptor targetDescriptor;
      protected Fault fault;
  
      PersistentObjectToManyProperty(ObjRelationship relationship, ClassDescriptor targetDescriptor, Fault fault) {
          this.relationship = relationship;
          this.targetDescriptor = targetDescriptor;
          this.reverseName = relationship.getReverseRelationshipName();
          this.fault = fault;
      }
  
      public ArcProperty getComplimentaryReverseArc() {
          return reverseName != null ? (ArcProperty) targetDescriptor.getProperty(reverseName) : null;
      }
  
      public ClassDescriptor getTargetDescriptor() {
          return targetDescriptor;
      }
  
      @Override
      public String getComplimentaryReverseDbRelationshipPath() {
          if (reverseDbPath == null) {
              reverseDbPath = relationship.getReverseDbRelationshipPath().value();
          }
  
          return reverseDbPath;
      }
  
      @Override
      public String getName() {
          return relationship.getName();
      }
  
      public ObjRelationship getRelationship() {
          return relationship;
      }
  
      public void addTarget(Object source, Object target, boolean setReverse) throws PropertyException {
          try {
              toPersistent(source).addToManyTarget(getName(), toPersistent(target), setReverse);
          } catch (Throwable th) {
              throw new PropertyException("Error setting to-many Persistent property: " + getName(), this, source, th);
          }
      }
  
      public void removeTarget(Object source, Object target, boolean setReverse) throws PropertyException {
          try {
              toPersistent(source).removeToManyTarget(getName(), toPersistent(target), setReverse);
          } catch (Throwable th) {
              throw new PropertyException("Error unsetting to-many Persistent property: " + getName(), this, source, th);
          }
      }
  
      @Override
      public void injectValueHolder(Object object) throws PropertyException {
          if (readPropertyDirectly(object) == null) {
              writePropertyDirectly(object, null, fault.resolveFault((Persistent) object, getName()));
          }
      }
  
      public boolean isFault(Object source) {
          return readPropertyDirectly(source) instanceof Fault;
      }
  
      @Override
      public boolean visit(PropertyVisitor visitor) {
          return visitor.visitToMany(this);
      }
  
      public void invalidate(Object object) {
          Object value = readPropertyDirectly(object);
          if (value instanceof Fault) {
              // nothing to do
          } else if (value instanceof ValueHolder) {
              ((ValueHolder) value).invalidate();
          } else {
              writePropertyDirectly(object, null, fault);
          }
      }
  
      public void addTargetDirectly(Object source, Object target) throws PropertyException {
          addTarget(source, target, false);
      }
  
      public void removeTargetDirectly(Object source, Object target) throws PropertyException {
          removeTarget(source, target, false);
      }
  }
  