# ComponentMetadataHandler

@ServiceScope(value = Project::class)
interface ComponentMetadataHandler

Allows the build to provide rules that modify the metadata of depended-on software components. Component metadata rules are applied in the components section of the dependencies block DependencyHandler of a build script. The rules can be defined in two different ways:

1. As an action directly when they are applied in the components section
2. As an isolated class implementing the ComponentMetadataRule interface

Example shows a basic way of removing certain transitive dependencies from one of our dependencies.

    plugins {
        id 'java'
    }

    repositories {
        mavenCentral()
    }

    dependencies {
        components {
            withModule("jaxen:jaxen") {
                allVariants {
                    withDependencies {
                        removeAll { it.group in ["dom4j", "jdom", "xerces", "maven-plugins", "xml-apis", "xom"] }
                    }
                }

            }
        }
        implementation("jaxen:jaxen:1.1.3")
    }

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#### Since

1.8

## Functions

all
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abstract fun all(@DelegatesTo(value = ComponentMetadataDetails::class) rule: Closure<out Any>): ComponentMetadataHandler
Adds a rule closure that may modify the metadata of any resolved software component.
abstract fun all(rule: Class<out ComponentMetadataRule>): ComponentMetadataHandler
abstract fun all(rule: Class<out ComponentMetadataRule>, configureAction: Action<in ActionConfiguration>): ComponentMetadataHandler
Adds a class based rule that may modify the metadata of any resolved software component.
abstract fun all(ruleSource: Any): ComponentMetadataHandler
Adds a rule that may modify the metadata of any resolved software component.
abstract fun all(rule: Action<in ComponentMetadataDetails>): ComponentMetadataHandler
Adds a rule action that may modify the metadata of any resolved software component.
all
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inline fun <T : ComponentMetadataRule> ComponentMetadataHandler.all(): ComponentMetadataHandler

Adds a class based rule that may modify the metadata of any resolved software component.

inline fun ComponentMetadataHandler.all(rule: KClass<out ComponentMetadataRule>): ComponentMetadataHandler
inline fun ComponentMetadataHandler.all(rule: KClass<out ComponentMetadataRule>, configureAction: Action<in ActionConfiguration>): ComponentMetadataHandler

Kotlin extension function taking kotlin.reflect.KClass for org.gradle.api.artifacts.dsl.ComponentMetadataHandler.all.

inline fun <T : ComponentMetadataRule> ComponentMetadataHandler.all(configureAction: Action<in ActionConfiguration>): ComponentMetadataHandler

Adds a class based rule that may modify the metadata of any resolved software component. The rule itself is configured by the provided configure action.

withModule
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abstract fun withModule(id: Any, @DelegatesTo(value = ComponentMetadataDetails::class) rule: Closure<out Any>): ComponentMetadataHandler
abstract fun withModule(id: Any, ruleSource: Any): ComponentMetadataHandler
abstract fun withModule(id: Any, rule: Action<in ComponentMetadataDetails>): ComponentMetadataHandler
Adds a rule that may modify the metadata of any resolved software component belonging to the specified module.
abstract fun withModule(id: Any, rule: Class<out ComponentMetadataRule>): ComponentMetadataHandler
abstract fun withModule(id: Any, rule: Class<out ComponentMetadataRule>, configureAction: Action<in ActionConfiguration>): ComponentMetadataHandler
Adds a class based rule that may modify the metadata of any resolved software component belonging to the specified module.
withModule
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inline fun <T : ComponentMetadataRule> ComponentMetadataHandler.withModule(id: Any): ComponentMetadataHandler
inline fun <T : ComponentMetadataRule> ComponentMetadataHandler.withModule(id: Any, configureAction: Action<in ActionConfiguration>): ComponentMetadataHandler

Adds a class based rule that may modify the metadata of any resolved software component belonging to the specified module.

inline fun ComponentMetadataHandler.withModule(id: Any, rule: KClass<out ComponentMetadataRule>): ComponentMetadataHandler
inline fun ComponentMetadataHandler.withModule(id: Any, rule: KClass<out ComponentMetadataRule>, configureAction: Action<in ActionConfiguration>): ComponentMetadataHandler

Kotlin extension function taking kotlin.reflect.KClass for org.gradle.api.artifacts.dsl.ComponentMetadataHandler.withModule.