X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.databoard%2Fsrc%2Forg%2Fsimantics%2Fdataboard%2Fbinding%2Fimpl%2FBeanBinding.java;fp=bundles%2Forg.simantics.databoard%2Fsrc%2Forg%2Fsimantics%2Fdataboard%2Fbinding%2Fimpl%2FBeanBinding.java;h=9653bc64f49abc404c2e3cb04b9fa836e156690a;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git diff --git a/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/BeanBinding.java b/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/BeanBinding.java new file mode 100644 index 000000000..9653bc64f --- /dev/null +++ b/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/BeanBinding.java @@ -0,0 +1,138 @@ +/******************************************************************************* + * Copyright (c) 2007, 2011 Association for Decentralized Information Management in + * Industry THTH ry. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * VTT Technical Research Centre of Finland - initial API and implementation + *******************************************************************************/ +package org.simantics.databoard.binding.impl; + +import java.util.Set; + +import org.simantics.databoard.adapter.AdaptException; +import org.simantics.databoard.adapter.AdapterFactory; +import org.simantics.databoard.binding.Binding; +import org.simantics.databoard.binding.RecordBinding; +import org.simantics.databoard.binding.VariantBinding; +import org.simantics.databoard.binding.classfactory.TypeClassFactory; +import org.simantics.databoard.binding.error.BindingConstructionException; +import org.simantics.databoard.binding.error.BindingException; +import org.simantics.databoard.binding.factory.BindingRepository; +import org.simantics.databoard.binding.reflection.BindingRequest; +import org.simantics.databoard.binding.reflection.ClassBindingFactory; +import org.simantics.databoard.type.Datatype; +import org.simantics.databoard.util.Bean; + +/** + * Binds Bean-class (exact match) as Variant. + * + * @author Toni Kalajainen + */ +public class BeanBinding extends VariantBinding { + + ClassBindingFactory bindingFactory; + AdapterFactory adapterFactory; + TypeClassFactory typeClassFactory; + + public BeanBinding(ClassBindingFactory bindingFactory, TypeClassFactory typeClassFactory, AdapterFactory adapterFactory) { + this.bindingFactory = bindingFactory; + this.adapterFactory = adapterFactory; + this.typeClassFactory = typeClassFactory; + } + + public ClassBindingFactory getBindingFactory() { + return bindingFactory; + } + + public BindingRepository getRepository() { + return bindingFactory.getRepository(); + } + + @Override + public Object create(Binding srcBinding, Object value) throws BindingException { +// if (srcBinding instanceof RecordBinding == false) throw new BindingException("Cannot assign "+srcBinding.getClass()+" to bean."); + try { + BindingRequest request = typeClassFactory.getClass( srcBinding.type() ); + Binding dstBinding = bindingFactory.getBinding( request ); + return adapterFactory.adapt(value, srcBinding, dstBinding); + } catch (BindingConstructionException e) { + throw new BindingException(e); + } catch (AdaptException e) { + throw new BindingException(e); + } + } + + @Override + public Binding getContentBinding(Object variant) throws BindingException { + Bean bean = (Bean) variant; + return bean.getBinding(); + } + + @Override + public Datatype getContentType(Object variant) throws BindingException { + Bean bean = (Bean) variant; + return bean.getBinding().type(); + } + + @Override + public Object getContent(Object variant, Binding binding) + throws BindingException { + try { + if (binding instanceof RecordBinding == false) throw new BindingException("Cannot assign "+binding.getClass()+" to bean."); + RecordBinding dstBinding = (RecordBinding) binding; + Bean src = (Bean) variant; + RecordBinding srcBinding = (RecordBinding) src.getBinding(); + return adapterFactory.adapt(src, srcBinding, dstBinding); + } catch (AdaptException e) { + throw new BindingException( e ); + } + } + + @Override + public Object getContent(Object variant) + throws BindingException { + return variant; + } + + @Override + public void setContent(Object variant, Binding binding, Object src) + throws BindingException { + if (variant==src) return; + if (binding instanceof RecordBinding == false) throw new BindingException("Cannot assign "+binding.getClass()+" to bean."); + RecordBinding srcBinding = (RecordBinding) binding; + Bean dst = (Bean) variant; + RecordBinding dstBinding = (RecordBinding) dst.getBinding(); + dstBinding.readFrom(srcBinding, src, dst); + } + + @Override + public void assertInstaceIsValid(Object obj, Set validInstances) throws BindingException { + Bean bean = (Bean) obj; + bean.getBinding().assertInstaceIsValid(bean, validInstances); + } + + @Override + public boolean isInstance(Object obj) { + return obj instanceof Bean; + } + + @Override + public boolean isImmutable() { + return false; + } + + @Override + protected boolean baseEquals(Object obj) { + BeanBinding o = (BeanBinding)obj; + return super.baseEquals(obj) && o.adapterFactory == this.adapterFactory && o.bindingFactory == this.bindingFactory && o.typeClassFactory == this.typeClassFactory; + } + + @Override + public int baseHashCode() { + return super.baseHashCode() + 7 * adapterFactory.hashCode() + 13 * bindingFactory.hashCode() + 17 * typeClassFactory.hashCode(); + } +}