Dependency graph

As explained in Quarkus in Action

A bean dependency graph is a visual graph representing dependency relationships among managed beans.

A bean dependency graph is a visual representation of dependency relationships among managed CDI beans. Quarkus exposes it from the Dev UI alongside each application bean. section 3.3.1

The Dev UI lists application beans, including REST endpoints, and provides an optional link to the graph. Selecting that link opens the dependency view for the bean. section 3.3.1

Figure 3.5 The Bean Dependency Graph of the GreetingResource class

Use the graph visualization to inspect the dependencies associated with a REST endpoint such as GreetingResource. section 3.3.1

How Quarkus in Action covers it

How deep it goes

Defines and visualizes bean dependencies, but does not explain dependency resolution internals.

Examples

Shows the dependency graph for the GreetingResource REST endpoint.

What it assumes

Assumes familiarity with application beans and CDI; identifies REST endpoints as CDI beans.

What you can do after

Evaluate bean dependencies through a visual graph in Quarkus Dev UI.

How it connects

Connects CDI beans, REST endpoints, and Quarkus Dev UI.

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Also explained in

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  ASP.NET Core in Action, 3eA dependency graph is a directed graph representing objects or components and the dependencies required to construct or operate them.
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  Cloud Observability in ActionA service map is a graphical representation of the services in a distributed system and their communication relationships.
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  Infrastructure as Code, Patterns and Practices: With examples in Python and TerraformA dependency graph represents infrastructure resources and the dependency relationships among them.
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  Natural Language Processing in Action, Second EditionA dependency tree is a tree representation of grammatical relationships in which words depend on other words within a sentence.

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Related concepts

• dependency injectionaddressed by · Dependency injection is a software design technique in which a component receives its dependencies from outside rather than creating or locating them internally.
• structured extractionused by · Structured extraction is the process of identifying specified information in source content and representing it as organized data in a defined structure.
• dependencyuses · A software dependency is a component, resource, or prerequisite on which another software component or operation relies to function or proceed.
• waterfall visualizationcontrasts with · A waterfall visualization is a time-aligned display showing the sequence, duration, nesting, and overlap of activities or service executions.

This explainer was generated by Manning's knowledge graph from the text of Quarkus in Action. The section links point to the parts of the book it draws on.