}

    protected TypeOf() {
        this.type = captureTypeArgument();
    }

    /**
     * Queries whether this object represents a simple (non-composite) type, not an array and not a generic type.
     *
     * @return true if this object represents a simple type.
     */
    public boolean isSimple() {
        return type.isClass()
            && !rawClass().isArray();
    }

    /**

    /**
     * Allows quickly finding [KtClassOrObject]s which have a given simple name as a supertype. The map may contain local classes as well.
     */
    internal val classesBySupertypeName: MutableMap<Name, MutableSet<KtClassOrObject>> = mutableMapOf()

    /**
     * Maps a simple name `N` to type aliases `A` in whose definition `N` occurs as the topmost user type, which is a prerequisite for other

* Share database connections.
* Enforce security, authentication, role requirements, etc.
* And many other things...

All these, while minimizing code repetition.

## First Steps

Let's see a very simple example. It will be so simple that it is not very useful, for now.

But this way we can focus on how the **Dependency Injection** system works.

### Create a dependency, or "dependable"

Let's first focus on the dependency.

	},
	{
		name: "destinationrule with no cacert, simple at portlevel",
		inputFiles: []string{
			"testdata/destinationrule-simple-port.yaml",
		},
		analyzer: &destinationrule.CaCertificateAnalyzer{},
		expected: []message{
			{msg.NoServerCertificateVerificationPortLevel, "DestinationRule db-tls"},
		},
	},
	{
		name: "destinationrule with credentialname, simple at destinationlevel, no workloadSelector",

					t.Fatalf("expected alpn list %v; got %v", util.ALPNInMeshH2WithMxc, got)
				}
			},
		},
		{
			name:                       "user specified simple tls",
			mtlsCtx:                    userSupplied,
			discoveryType:              cluster.Cluster_EDS,
			tls:                        simpleTLSSettingsWithCerts,
			expectTransportSocket:      true,

// CaCertificateAnalyzer checks if CaCertificate is set in case mode is SIMPLE/MUTUAL
type CaCertificateAnalyzer struct{}

var _ analysis.Analyzer = &CaCertificateAnalyzer{}

func (c *CaCertificateAnalyzer) Metadata() analysis.Metadata {
	return analysis.Metadata{
		Name:        "destinationrule.CaCertificateAnalyzer",
		Description: "Checks if caCertificates is set when TLS mode is SIMPLE/MUTUAL",
		Inputs: []config.GroupVersionKind{

You can obtain an instance of `ObjectFactory` using the `project.objects` property.
Here's a simple example demonstrating how to use `ObjectFactory` to create a property and set its value:

====
include::sample[dir="snippets/providers/services/kotlin",files="build.gradle.kts[tags=object-factory]"]

Apart from all the fancy words used here, the **Dependency Injection** system is quite simple.

Just functions that look the same as the *path operation functions*.

But still, it is very powerful, and allows you to declare arbitrarily deeply nested dependency "graphs" (trees).

!!! tip
    All this might not seem as useful with these simple examples.

    But you will see how useful it is in the chapters about **security**.

  public void testLibrary() {
    runTest("analysis/analysis-api/testData/components/scopeProvider/packageScope/library.kt");
  }

  @Test
  @TestMetadata("simple.kt")
  public void testSimple() {
    runTest("analysis/analysis-api/testData/components/scopeProvider/packageScope/simple.kt");
  }

  public void testLibrary() {
    runTest("analysis/analysis-api/testData/components/scopeProvider/packageScope/library.kt");
  }

  @Test
  @TestMetadata("simple.kt")
  public void testSimple() {
    runTest("analysis/analysis-api/testData/components/scopeProvider/packageScope/simple.kt");
  }