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## edu.uci.ics.jung.graph.predicates
Class SourceVertexPredicate

    java.lang.Object
      edu.uci.ics.jung.graph.predicates.GPredicate
          edu.uci.ics.jung.graph.predicates.VertexPredicate
              edu.uci.ics.jung.graph.predicates.SourceVertexPredicate

All Implemented Interfaces:
  Predicate

public class SourceVertexPredicate
extends VertexPredicate

Evaluates to `true` if and only if the specified vertex is a source, i.e., has no incoming directed edges.

Author:
  Joshua O'Madadhain

Field Summary
`protected static SourceVertexPredicate` | `instance`

Fields inherited from class edu.uci.ics.jung.graph.predicates.GPredicate
`isInitializationPredicate`

Constructor Summary
`protected` | `SourceVertexPredicate()`

Method Summary
`boolean` | `evaluateVertex(ArchetypeVertex arg0)`
`static SourceVertexPredicate` | `getInstance()`

Methods inherited from class edu.uci.ics.jung.graph.predicates.VertexPredicate
`evaluate`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### instance

    protected static SourceVertexPredicate instance

Constructor Detail

### SourceVertexPredicate

    protected SourceVertexPredicate()

Method Detail

### getInstance

    public static SourceVertexPredicate getInstance()

### evaluateVertex

    public boolean evaluateVertex(ArchetypeVertex arg0)

  Specified by:
    `evaluateVertex` in class `VertexPredicate`
  See Also:
    `VertexPredicate.evaluateVertex(edu.uci.ics.jung.graph.ArchetypeVertex)`

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