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• 0.2
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• ScopedInjector.java

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de.leanovate.pragmatic.ioc.ScopedInjector Maven / Gradle / Ivy

package de.leanovate.pragmatic.ioc;

import java.util.Optional;
import java.util.function.Supplier;

/**
 * Generic scope based injector.
 *
 * @param  the type to be injected
 */
public class ScopedInjector implements Injector {
    private final Class injectedClass;

    private final Optional name;

    private final Supplier scopeSupplier;

    private final Supplier supplier;

    /**
     * Standard constructor.
     *
     * @param injectedClass class of {@code T}
     * @param name the name inside the scope
     * @param scopeSupplier supplier for the {@link de.leanovate.pragmatic.ioc.Scope}
     * @param supplier supplier for the instance
     */
    public ScopedInjector(final Class injectedClass, final Optional name, final Supplier scopeSupplier,
            final Supplier supplier) {

        this.injectedClass = injectedClass;
        this.name = name;
        this.scopeSupplier = scopeSupplier;
        this.supplier = supplier;
    }

    @Override
    public T inject() {

        return scopeSupplier.get().getInstance(injectedClass, name, supplier);
    }

    @Override
    public Scope getScope() {

        return scopeSupplier.get();
    }
}