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## 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` | `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.

### 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.

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Copyright (c) 2010 Gaudenz Alder. All rights reserved.