com.mxgraph.view
Class mxMultiplicity

java.lang.Object
  com.mxgraph.view.mxMultiplicity

public class mxMultiplicity
extends Object

Field Summary

protected String	attr Optional string that specifies the attributename to be passed to mxCell.is to check if the rule applies to a cell.
protected String	countError Holds the localized error message to be displayed if the number of connections for which the rule applies is smaller than min or greater than max.
protected String	max Defines the maximum number of connections for which this rule applies.
protected int	min Defines the minimum number of connections for which this rule applies.
protected boolean	source Boolean that specifies if the rule is applied to the source or target terminal of an edge.
protected String	type Defines the type of the source or target terminal.
protected String	typeError Holds the localized error message to be displayed if the type of the neighbor for a connection does not match the rule.
protected Collection<String>	validNeighbors Holds an array of strings that specify the type of neighbor for which this rule applies.
protected boolean	validNeighborsAllowed Boolean indicating if the list of validNeighbors are those that are allowed for this rule or those that are not allowed for this rule.
protected String	value Optional string that specifies the value of the attribute to be passed to mxCell.is to check if the rule applies to a cell.

Constructor Summary

mxMultiplicity(boolean source, String type, String attr, String value, int min, String max, Collection<String> validNeighbors, String countError, String typeError, boolean validNeighborsAllowed)

Method Summary

String	check(mxGraph graph, Object edge, Object source, Object target, int sourceOut, int targetIn) Function: check Checks the multiplicity for the given arguments and returns the error for the given connection or null if the multiplicity does not apply.
boolean	checkNeighbors(mxGraph graph, Object edge, Object source, Object target) Checks the type of the given value.
boolean	checkTerminal(mxGraph graph, Object terminal, Object edge) Checks the type of the given value.
boolean	checkType(mxGraph graph, Object value, String type) Checks the type of the given value.
boolean	checkType(mxGraph graph, Object value, String type, String attr, String attrValue) Checks the type of the given value.
int	getMaxValue() Returns the numeric value of max.
boolean	isUnlimited() Returns true if max is "n" (unlimited).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

type

protected String type

Defines the type of the source or target terminal. The type is a string passed to mxUtils.isNode together with the source or target vertex value as the first argument.

attr

protected String attr

Optional string that specifies the attributename to be passed to mxCell.is to check if the rule applies to a cell.

value

protected String value

Optional string that specifies the value of the attribute to be passed to mxCell.is to check if the rule applies to a cell.

source

protected boolean source

Boolean that specifies if the rule is applied to the source or target terminal of an edge.

min

protected int min

Defines the minimum number of connections for which this rule applies. Default is 0.

max

protected String max

Defines the maximum number of connections for which this rule applies. A value of 'n' means unlimited times. Default is 'n'.

validNeighbors

protected Collection<String> validNeighbors

Holds an array of strings that specify the type of neighbor for which this rule applies. The strings are used in mxCell.is on the opposite terminal to check if the rule applies to the connection.

validNeighborsAllowed

protected boolean validNeighborsAllowed

Boolean indicating if the list of validNeighbors are those that are allowed for this rule or those that are not allowed for this rule.

countError

protected String countError

Holds the localized error message to be displayed if the number of connections for which the rule applies is smaller than min or greater than max.

typeError

protected String typeError

Holds the localized error message to be displayed if the type of the neighbor for a connection does not match the rule.

Constructor Detail

mxMultiplicity

public mxMultiplicity(boolean source,
                      String type,
                      String attr,
                      String value,
                      int min,
                      String max,
                      Collection<String> validNeighbors,
                      String countError,
                      String typeError,
                      boolean validNeighborsAllowed)

Method Detail

check

public String check(mxGraph graph,
                    Object edge,
                    Object source,
                    Object target,
                    int sourceOut,
                    int targetIn)

Function: check Checks the multiplicity for the given arguments and returns the error for the given connection or null if the multiplicity does not apply. Parameters: graph - Reference to the enclosing graph instance. edge - Cell that represents the edge to validate. source - Cell that represents the source terminal. target - Cell that represents the target terminal. sourceOut - Number of outgoing edges from the source terminal. targetIn - Number of incoming edges for the target terminal.

checkNeighbors

public boolean checkNeighbors(mxGraph graph,
                              Object edge,
                              Object source,
                              Object target)

Checks the type of the given value.

checkTerminal

public boolean checkTerminal(mxGraph graph,
                             Object terminal,
                             Object edge)

Checks the type of the given value.

checkType

public boolean checkType(mxGraph graph,
                         Object value,
                         String type)

Checks the type of the given value.

checkType

public boolean checkType(mxGraph graph,
                         Object value,
                         String type,
                         String attr,
                         String attrValue)

Checks the type of the given value.

isUnlimited

public boolean isUnlimited()

Returns true if max is "n" (unlimited).

getMaxValue

public int getMaxValue()

Returns the numeric value of max.