Returns true if the requested property is set; false, otherwise.

@return
returned object is {@link boolean }
422813
@Override
    public boolean isSet(String propName) {
        if (propName.equals(PROP_C)) {
            return isSetC();
        }
        if (propName.equals(PROP_COUNTRY_NAME)) {
            return isSetCountryName();
        }
        if (propName.equals(PROP_DESCRIPTION)) {
            return isSetDescription();
        }
        return super.isSet(propName);
    }
349698
public boolean isSet(_Fields field) {
    if (field == null) {
      throw new IllegalArgumentException();
    }

    switch (field) {
    case TOPOLOGY:
      return is_set_topology();
    case COMPONENTS:
      return is_set_components();
    case TASKS:
      return is_set_tasks();
    case METRICS:
      return is_set_metrics();
    }
    throw new IllegalStateException();
  }
285193
public boolean satisfied( PropertySet properties)
    {
    boolean isSatisfied;
    Iterator<IAssertion> assertions;
    
    for( assertions = getAssertions(),
           isSatisfied = !assertions.hasNext();

         !isSatisfied
           && assertions.hasNext();

         isSatisfied = assertions.next().satisfied( properties));
    
    return isSatisfied;
    }
500145
public boolean isAnnotatable() {
		return ObjectUtils.defaultIfNull((Boolean) configurationValues.get(ConfigurationOption.ANNOTATE), Boolean.TRUE)
		            .booleanValue();
	}
503890
@JSFProperty(defaultValue = "true", tagExcluded = true)
    public boolean isValid()
    {
        Object value = getStateHelper().get(PropertyKeys.valid);
        if (value != null)
        {
            return (Boolean) value;        
        }
        return true; 
    }
305413
public boolean isSet(_Fields field) {
    if (field == null) {
      throw new IllegalArgumentException();
    }

    switch (field) {
    case ID:
      return isSetId();
    case USER:
      return isSetUser();
    case DETECTION_POINT:
      return isSetDetectionPoint();
    case TIMESTAMP:
      return isSetTimestamp();
    case DETECTION_SYSTEM:
      return isSetDetectionSystem();
    case RESOURCE:
      return isSetResource();
    }
    throw new IllegalStateException();
  }
1303516
public boolean satisfied( PropertySet propertySet)
    {
    boolean isSatisfied;
    Iterator<String> properties;
    
    for( properties = getProperties(),
           isSatisfied = !properties.hasNext();

         !isSatisfied
           && properties.hasNext();

         isSatisfied = propertySet.contains( properties.next()));
    
    return isSatisfied;
    }
870409
public function __isset($property)
    {
        if (null !== $this->findProperty($property)) {
            return true;
        } else {
            return isset($this->$property);
        }
    }
838233
public boolean retrieveValue()
    {
        PropertyOwner pRegistration = this.retrieveUserProperties();
        if (pRegistration != null) if (pRegistration instanceof UserProperties)
            return ((UserProperties)pRegistration).retrieveField(this.getOwner());
        return false;
    }
953322
public final boolean hasProperty(final String property) {
    final String val = properties.get(property);
    if (val == null)
      return false;
    if (val.isEmpty())
      return false;
    return true;
  }
466771
public boolean isSet(_Fields field) {
    if (field == null) {
      throw new IllegalArgumentException();
    }

    switch (field) {
    case TYPE_CLASS_NAME:
      return isSetTypeClassName();
    }
    throw new IllegalStateException();
  }
1092127
public function __isset($property)
	{
		if(!empty($property))
		{
			# generic isset check
			$call = "isset_".$property;
			
			if(method_exists($this, $call))
				return $this->{$call}() && true;
			
			# now to see if the value is set?
			$call = "getter_".$property;
			
			if(method_exists($this, $call))
				return $this->{$call}() !== null;
			
			/*
				if($this instanceof ArrayAccess)
					return $this->offsetExists($property);
			*/
		}
		
		return false;
	}
1270923
@InterfaceAudience.Public
    public boolean isDeletion() {
        Object deleted = getProperty("_deleted");
        if (deleted == null) {
            return false;
        }
        Boolean deletedBool = (Boolean) deleted;
        return deletedBool.booleanValue();
    }
439616
@Override
    public boolean isSet(String propName) {
        if (propName.equals("checkPoint")) {
            return isSetCheckPoint();
        }
        if (propName.equals("changeTypes")) {
            return isSetChangeTypes();
        }
        return super.isSet(propName);
    }
405390
public boolean isSet(_Fields field) {
    if (field == null) {
      throw new IllegalArgumentException();
    }

    switch (field) {
    case SESSION_HANDLE:
      return isSetSessionHandle();
    case OWNER:
      return isSetOwner();
    case RENEWER:
      return isSetRenewer();
    }
    throw new IllegalStateException();
  }
851750
public boolean isSet(PropertyKey key) {
    if (isSetByUser(key)) {
      return true;
    }
    // In case key is not the reference to the original key
    return PropertyKey.fromString(key.toString()).getDefaultValue() != null;
  }
1073652
public boolean isAtEnd() {
    final AtomicBoolean atEnd = new AtomicBoolean(true);
    foreachPartition(ps -> {
      if (!ps.isAtEnd()) {
        atEnd.set(false);
      }
    });
    return atEnd.get();
  }