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| # Eclipse project information generated by Maven | ||
| .classpath | ||
| .project | ||
| test-output | ||
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src/demo/java/org/codefx/libfx/collection/transform/EqualityTransformingSetDemo.java
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| package org.codefx.libfx.collection.transform; | ||
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| import java.util.Set; | ||
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| /** | ||
| * Demonstrates how to use the {@link EqualityTransformingSet}. | ||
| * <p> | ||
| * The demonstrated example is based on the situation that we want a set of strings which uses only their length for | ||
| * equality comparison. | ||
| */ | ||
| public class EqualityTransformingSetDemo { | ||
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| /** | ||
| * A set of strings which uses the length for equality. | ||
| */ | ||
| private final Set<String> lengthSet; | ||
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| /** | ||
| * Creates a new demo. | ||
| */ | ||
| public EqualityTransformingSetDemo() { | ||
| lengthSet = EqualityTransformingCollectionBuilder | ||
| .forType(String.class) | ||
| .withEquals((a, b) -> a.length() == b.length()) | ||
| .withHash(String::length) | ||
| .buildSet(); | ||
| } | ||
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| /** | ||
| * Runs this demo. | ||
| * | ||
| * @param args | ||
| * command line arguments (will not be used) | ||
| */ | ||
| public static void main(String[] args) { | ||
| EqualityTransformingSetDemo demo = new EqualityTransformingSetDemo(); | ||
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| demo.addSomeElements(); | ||
| } | ||
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| private void addSomeElements() { | ||
| print("-- Adding some elements --"); | ||
| print(); | ||
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| lengthSet.add("a"); | ||
| lengthSet.add("b"); | ||
| print(lengthSet.toString()); | ||
| } | ||
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| private static void print() { | ||
| System.out.println(); | ||
| } | ||
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| private static void print(String text) { | ||
| System.out.println(text); | ||
| } | ||
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| } |
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