com.dlsc.flexgantt.model.scheduling

Interface IConstraint<T,S extends IGranularity>

Type Parameters:

T - the object type of the timeline objects

S - the granularity type (e.g. TimeGranularity.HOURS)

All Superinterfaces:

IRelationship<T>

All Known Implementing Classes:

AbstractConstraint, SimpleGranularityConstraint, TimeGranularityConstraint

public interface IConstraint<T,S extends IGranularity>
extends IRelationship<T>

A constraint is a specialization of a generic relationship between two timeline objects. It adds scheduling-specific information to the relationship such as constraint type (hard, soft) and buffer duration.

Since:

2.1

Author:

Dirk Lemmermann

Method Summary

Modifier and Type	Method and Description
int	getBufferDuration() Returns the duration of the buffer.
S	getBufferGranularity() Returns the buffer granularity (days, hours, weeks).
BufferType	getBufferType() Returns the buffer type (=, <=, <, >, >=).
ConstraintType	getConstraintType() Returns the ConstraintType which determines if the constraint is a hard or a soft constraint.
Violation	getViolation(long time1, long time2) Checks whether a violation of the constraint exists for the given two time points.
void	setBufferDuration(int duration) Sets the duration of the buffer.
void	setBufferGranularity(S granularity) Sets the buffer granularity (days, hours, weeks).
void	setBufferType(BufferType type) Sets the buffer type (=, <=, <, >, >=).
void	setConstraintType(ConstraintType type) Sets the ConstraintType which determines if the constraint is a hard or a soft constraint.

Methods inherited from interface com.dlsc.flexgantt.model.gantt.IRelationship

getLabel, getPopupObject, getPopupTitleObject, getSourcePath, getTargetPath, getType, isDeletable, isSelectable, setSourcePath, setTargetPath, setType

Method Detail

getViolation

Violation getViolation(long time1,
                       long time2)

Checks whether a violation of the constraint exists for the given two time points.

• If the constraint is of type RelationshipType.END_TO_START then time1will be the end time of the first timeline object and time2 will be the start time of the second timeline object.
• If the constraint is of type RelationshipType.END_TO_END then time1will be the end time of the first timeline object and time2 will be the end time of the second timeline object.
• If the constraint is of type RelationshipType.START_TO_START then time1will be the start time of the first timeline object and time2 will be the start time of the second timeline object.
• If the constraint is of type RelationshipType.START_TO_END then time1will be the start time of the first timeline object and time2 will be the end time of the second timeline object.

Parameters:

time1 -

time2 -

Returns:

a violation message

Since:

2.1

getConstraintType

ConstraintType getConstraintType()

Returns the ConstraintType which determines if the constraint is a hard or a soft constraint.

Returns:

the type of the constraint (hard, soft)

Since:

2.1

setConstraintType

void setConstraintType(ConstraintType type)

Sets the ConstraintType which determines if the constraint is a hard or a soft constraint.

Parameters:

type - the constraint type

Since:

2.1

getBufferType

BufferType getBufferType()

Returns the buffer type (=, <=, <, >, >=).

Returns:

the buffer type

Since:

2.1

setBufferType

void setBufferType(BufferType type)

Sets the buffer type (=, <=, <, >, >=).

Parameters:

type - the buffer type

Since:

2.1

getBufferGranularity

S getBufferGranularity()

Returns the buffer granularity (days, hours, weeks).

Returns:

the buffer granularity

Since:

2.1

setBufferGranularity

void setBufferGranularity(S granularity)

Sets the buffer granularity (days, hours, weeks).

Parameters:

granularity - the buffer granularity

Since:

2.1

getBufferDuration

int getBufferDuration()

Returns the duration of the buffer.

Returns:

the buffer duration

Since:

2.1

setBufferDuration

void setBufferDuration(int duration)

Sets the duration of the buffer.

Parameters:

duration - the buffer duration

Since:

2.1