Connection

Object
- com.xilinx.rapidwright.rwroute.Connection

All Implemented Interfaces:

Comparable<Connection>
```
public class Connection
extends Object
implements Comparable<Connection>
```
A Connection instance represents a pair of source-sink SitePinInst instances of a Net instance.

Constructor Summary

Constructors
Constructor and Description

Connection(int id, SitePinInst source, SitePinInst sink, NetWrapper netWrapper)

Constructors
Constructor and Description
`Connection(int id, SitePinInst source, SitePinInst sink, NetWrapper netWrapper)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addNode(Node node)`
`void`	`addRnode(Routable rn)`
`String`	`bbRectangleString()`
`void`	`calculateCriticality(float maxDelay, float maxCriticality, float criticalityExponent)` Computes criticality of a connection.
`int`	`compareTo(Connection arg0)`
`void`	`computeConnectionBoundingBox(short boundingBoxExtensionX, short boundingBoxExtensionY, boolean checkSLRCrossing)` Computes the connection bounding box based on the geometric center of the net, source and sink rnodes.
`void`	`computeHpwl()` Computes the half-perimeter wirelength of connection based on the source and sink rnodes.
`void`	`enlargeBoundingBox(int horizontalIncrement, int verticalIncrement)`
`float`	`getCriticality()`
`short`	`getHpwl()`
`NetWrapper`	`getNetWrapper()`
`List<Node>`	`getNodes()`
`List<Routable>`	`getRnodes()`
`SitePinInst`	`getSink()`
`Routable`	`getSinkRnode()`
`SitePinInst`	`getSource()`
`Routable`	`getSourceRnode()`
`List<TimingEdge>`	`getTimingEdges()`
`short`	`getXMaxBB()`
`short`	`getXMinBB()`
`short`	`getYMaxBB()`
`short`	`getYMinBB()`
`int`	`hashCode()`
`boolean`	`isCongested()` Checks if a connection has any overused rnodes to indicate the congestion status.
`boolean`	`isCrossSLR()`
`boolean`	`isDirect()`
`boolean`	`isDlyPatched()`
`void`	`newNodes()`
`void`	`resetCriticality()`
`void`	`resetRoute()`
`void`	`setCriticality(float criticality)`
`void`	`setCrossSLR(boolean crossSLR)`
`void`	`setDirect(boolean direct)`
`void`	`setDlyPatched(boolean dlyPatched)`
`void`	`setHpwl(short conHpwl)`
`void`	`setNetWrapper(NetWrapper netWrapper)`
`void`	`setNodes(List<Node> nodes)`
`void`	`setRnodes(List<Routable> rnodes)`
`void`	`setSinkRnode(Routable childRnode)`
`void`	`setSource(SitePinInst source)`
`void`	`setSourceRnode(Routable sourceNode)`
`void`	`setTimingEdges(List<TimingEdge> timingEdges)`
`void`	`setTimingEdgesDelay(float routeDelay)`
`void`	`setXMaxBB(short xMaxBB)`
`void`	`setXMinBB(short xMinBB)`
`void`	`setYMaxBB(short yMaxBB)`
`void`	`setYMinBB(short yMinBB)`
`String`	`toString()`
`void`	`updateRouteDelay()`
`boolean`	`useRnodesWithMultiDrivers()` Checks if a connection is routed through any rnodes that have multiple drivers.

Methods inherited from class Object
equals, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Connection

public Connection(int id,
                  SitePinInst source,
                  SitePinInst sink,
                  NetWrapper netWrapper)

Method Detail

computeHpwl
```
public void computeHpwl()
```
Computes the half-perimeter wirelength of connection based on the source and sink rnodes.

computeConnectionBoundingBox
```
public void computeConnectionBoundingBox(short boundingBoxExtensionX,
                                         short boundingBoxExtensionY,
                                         boolean checkSLRCrossing)
```
Computes the connection bounding box based on the geometric center of the net, source and sink rnodes.

Parameters:

boundingBoxExtensionX - To indicate the extension on top of the minimum bounding box in the horizontal direction.

boundingBoxExtensionY - To indicate the extension on top of the minimum bounding box in the vertical direction. that contains the source rnode, sink rnode and the center of its NetWrapper Object.

checkSLRCrossing - A flag to indicate if SLR-crossing check is needed.

calculateCriticality
```
public void calculateCriticality(float maxDelay,
                                 float maxCriticality,
                                 float criticalityExponent)
```
Computes criticality of a connection.

Parameters:

maxDelay - The maximum delay to normalize the slack of a connection.

maxCriticality - The maximum criticality.

criticalityExponent - The exponent to separate critical connections and non-critical connections.

isCongested
```
public boolean isCongested()
```
Checks if a connection has any overused rnodes to indicate the congestion status.

Returns:

useRnodesWithMultiDrivers
```
public boolean useRnodesWithMultiDrivers()
```
Checks if a connection is routed through any rnodes that have multiple drivers.

Returns:

addRnode
```
public void addRnode(Routable rn)
```

updateRouteDelay
```
public void updateRouteDelay()
```

setTimingEdgesDelay

public void setTimingEdgesDelay(float routeDelay)

setCriticality

public void setCriticality(float criticality)

resetCriticality
```
public void resetCriticality()
```

getCriticality
```
public float getCriticality()
```

resetRoute
```
public void resetRoute()
```

getSourceRnode
```
public Routable getSourceRnode()
```

setSourceRnode

public void setSourceRnode(Routable sourceNode)

getSinkRnode
```
public Routable getSinkRnode()
```

setSinkRnode

public void setSinkRnode(Routable childRnode)

getXMinBB
```
public short getXMinBB()
```

setXMinBB
```
public void setXMinBB(short xMinBB)
```

getXMaxBB
```
public short getXMaxBB()
```

setXMaxBB
```
public void setXMaxBB(short xMaxBB)
```

getYMinBB
```
public short getYMinBB()
```

setYMinBB
```
public void setYMinBB(short yMinBB)
```

getYMaxBB
```
public short getYMaxBB()
```

setYMaxBB
```
public void setYMaxBB(short yMaxBB)
```

setNetWrapper

public void setNetWrapper(NetWrapper netWrapper)

getNetWrapper
```
public NetWrapper getNetWrapper()
```

getSource
```
public SitePinInst getSource()
```

setSource

public void setSource(SitePinInst source)

isDirect
```
public boolean isDirect()
```

setDirect

public void setDirect(boolean direct)

getSink
```
public SitePinInst getSink()
```

getTimingEdges

public List<TimingEdge> getTimingEdges()

setTimingEdges

public void setTimingEdges(List<TimingEdge> timingEdges)

getHpwl
```
public short getHpwl()
```

setHpwl
```
public void setHpwl(short conHpwl)
```

getRnodes
```
public List<Routable> getRnodes()
```

setRnodes

public void setRnodes(List<Routable> rnodes)

isDlyPatched
```
public boolean isDlyPatched()
```

setDlyPatched

public void setDlyPatched(boolean dlyPatched)

isCrossSLR
```
public boolean isCrossSLR()
```

setCrossSLR

public void setCrossSLR(boolean crossSLR)

newNodes
```
public void newNodes()
```

addNode
```
public void addNode(Node node)
```

getNodes
```
public List<Node> getNodes()
```

setNodes

public void setNodes(List<Node> nodes)

enlargeBoundingBox

public void enlargeBoundingBox(int horizontalIncrement,
                               int verticalIncrement)

hashCode
```
public int hashCode()
```
Overrides:

hashCode in class Object

compareTo
```
public int compareTo(Connection arg0)
```
Specified by:

compareTo in interface Comparable<Connection>

bbRectangleString
```
public String bbRectangleString()
```

toString
```
public String toString()
```
Overrides:

toString in class Object

Class Connection

Constructor Summary

Method Summary

Methods inherited from class Object

Constructor Detail

Connection

Method Detail

computeHpwl

computeConnectionBoundingBox

calculateCriticality

isCongested

useRnodesWithMultiDrivers

addRnode

updateRouteDelay

setTimingEdgesDelay

setCriticality

resetCriticality

getCriticality

resetRoute

getSourceRnode

setSourceRnode

getSinkRnode

setSinkRnode

getXMinBB

setXMinBB

getXMaxBB

setXMaxBB

getYMinBB

setYMinBB

getYMaxBB

setYMaxBB

setNetWrapper

getNetWrapper

getSource

setSource

isDirect

setDirect

getSink

getTimingEdges

setTimingEdges

getHpwl

setHpwl

getRnodes

setRnodes

isDlyPatched

setDlyPatched

isCrossSLR

setCrossSLR

newNodes

addNode

getNodes

setNodes

enlargeBoundingBox

hashCode

compareTo

bbRectangleString

toString