X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.objmap2%2Fsrc%2Forg%2Fsimantics%2Fobjmap%2Fgraph%2Frules%2Frange%2FFieldAccessorWithDefault.java;fp=bundles%2Forg.simantics.objmap2%2Fsrc%2Forg%2Fsimantics%2Fobjmap%2Fgraph%2Frules%2Frange%2FFieldAccessorWithDefault.java;h=dea8cf353d10bd022187e34b981f206378df90b2;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git diff --git a/bundles/org.simantics.objmap2/src/org/simantics/objmap/graph/rules/range/FieldAccessorWithDefault.java b/bundles/org.simantics.objmap2/src/org/simantics/objmap/graph/rules/range/FieldAccessorWithDefault.java new file mode 100644 index 000000000..dea8cf353 --- /dev/null +++ b/bundles/org.simantics.objmap2/src/org/simantics/objmap/graph/rules/range/FieldAccessorWithDefault.java @@ -0,0 +1,40 @@ +/******************************************************************************* + * Copyright (c) 2007, 2013 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.objmap.graph.rules.range; + +import java.lang.reflect.Field; + +import org.simantics.objmap.exceptions.MappingException; + + +/** + * Accesses the given field of the element. + * @author Hannu Niemist� + */ +public class FieldAccessorWithDefault extends FieldAccessor { + + T defaultValue; + + public FieldAccessorWithDefault(Field field, T defaultValue) { + super(field); + this.defaultValue = defaultValue; + } + + @Override + public T get(Range element) throws MappingException { + T value = super.get(element); + if(value == null) + return defaultValue; + else + return value; + } +}