Examples of org.picocontainer.PicoContainer

org.picocontainer.PicoContainer
This is the core interface for PicoContainer. It is used to retrieve component instances from the container; it only has accessor methods (in addition to the {@link #verify()} method). In order to register components in aPicoContainer, use a {@link MutablePicoContainer}, such as {@link org.picocontainer.defaults.DefaultPicoContainer}. @author Paul Hammant @author Aslak Hellesøy @author Jon Tirsén @version $Revision: 1820 $ @see See package description for basic overview how to use PicoContainer. @since 1.0

                "    }\n" +
                "    component(C)\n" +
                "}\n");


        // A and C have no no dependancies. B Depends on A.
        PicoContainer pico = buildContainer(script, null, ASSEMBLY_SCOPE);
        //pico.start();
        pico.stop();
        pico.dispose();


        assertEquals("Should match the expression", "<A<C<BB>C>A>!B!C!A", X.componentRecorder);
    }

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                "builder = new CustomGroovyNodeBuilder()\n" +
                "nano = builder.container(parent:parent) {\n" +
                "    component(A)\n" +
                "}\n");


        PicoContainer pico = buildContainer(script, parent, ASSEMBLY_SCOPE);
        // Should be able to get instance that was registered in the parent container
        assertEquals("world", pico.getComponentInstance("hello"));
    }

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                "  if ( assemblyScope instanceof SomeAssemblyScope ){\n "+
                "    component(B)\n" +
                "  }\n "+
                "}\n");


        PicoContainer pico = buildContainer(script, parent, new SomeAssemblyScope());
        assertNotNull(pico.getComponentInstanceOfType(B.class));
    }

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            buildContainer(script, null, new ParentAssemblyScope()));


        assertNotNull(parent.getComponentAdapterOfType(A.class));


        script = new StringReader(scriptValue);
        PicoContainer pico = buildContainer(script, parent,  new SomeAssemblyScope());
        assertNotNull(pico.getComponentInstance(B.class));
    }

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                "nano = builder.container {\n" +
                "    ca = component(java.lang.Object) \n" +
                "    component(instance:ca.getClass().getName())\n" +
                "}");


        PicoContainer pico = buildContainer(script, null, ASSEMBLY_SCOPE);
        // LifecyleContainerBuilder starts the container
        assertEquals("org.picocontainer.defaults.CachingComponentAdapter", pico.getComponentInstances().get(1).toString());
    }

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                "builder = new org.nanocontainer.script.groovy.GroovyNodeBuilder()\n" +
                "nano = builder.container {\n" +
                "    component(A)\n" +
                "}");


        PicoContainer pico = buildContainer(script, null, ASSEMBLY_SCOPE);
        // LifecyleContainerBuilder starts the container
        pico.dispose();


        assertEquals("Should match the expression", "<A!A", X.componentRecorder);
    }

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                "    component(key:'a', instance:'apple')\n" +
                "    component(key:'b', instance:'banana')\n" +
                "    component(instance:'noKeySpecified')\n" +
                "}");


        PicoContainer pico = buildContainer(script, null, ASSEMBLY_SCOPE);
        assertEquals("apple", pico.getComponentInstance("a"));
        assertEquals("banana", pico.getComponentInstance("b"));
        assertEquals("noKeySpecified", pico.getComponentInstance(String.class));
    }

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                "nano = builder.container {\n" +
                "    component(key:'byClass', class:HasParams, parameters:[ 'a', 'b', new ConstantParameter('c') ])\n" +
                "    component(key:'byClassString', class:'org.nanocontainer.script.groovy.HasParams', parameters:[ 'c', 'a', 't' ])\n" +
                "}");


        PicoContainer pico = buildContainer(script, null, ASSEMBLY_SCOPE);
        HasParams byClass = (HasParams) pico.getComponentInstance("byClass");
        assertEquals("abc", byClass.getParams());


        HasParams byClassString = (HasParams) pico.getComponentInstance("byClassString");
        assertEquals("cat", byClassString.getParams());
    }

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                "    component(key:'a2', class:A)\n" +
                "    component(key:'b1', class:B, parameters:[ new ComponentParameter('a1') ])\n" +
                "    component(key:'b2', class:B, parameters:[ new ComponentParameter('a2') ])\n" +
                "}");


        PicoContainer pico = buildContainer(script, null, ASSEMBLY_SCOPE);
        A a1 = (A) pico.getComponentInstance("a1");
        A a2 = (A) pico.getComponentInstance("a2");
        B b1 = (B) pico.getComponentInstance("b1");
        B b2 = (B) pico.getComponentInstance("b2");


        assertNotNull(a1);
        assertNotNull(a2);
        assertNotNull(b1);
        assertNotNull(b2);

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                "nano = builder.container {\n" +
                "    component(class:A)\n" +
                "    component(key:B, class:B, parameters:[ new ComponentParameter(A) ])\n" +
                "}");


        PicoContainer pico = buildContainer(script, null, ASSEMBLY_SCOPE);
        A a = (A) pico.getComponentInstance(A.class);
        B b = (B) pico.getComponentInstance(B.class);


        assertNotNull(a);
        assertNotNull(b);
        assertSame(a, b.a);
    }

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