1 package org.simantics.db.layer0.variable;
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3 import org.simantics.databoard.Bindings;
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4 import org.simantics.databoard.adapter.AdaptException;
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5 import org.simantics.databoard.binding.Binding;
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6 import org.simantics.databoard.type.Datatype;
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7 import org.simantics.db.ReadGraph;
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8 import org.simantics.db.WriteGraph;
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9 import org.simantics.db.exception.DatabaseException;
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12 * A default implementation of value accessor that has fixed binding.
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14 public abstract class ValueAccessorWithBinding implements ValueAccessor {
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16 public abstract Binding getBinding();
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19 public Object getValue(ReadGraph graph, Variable context, Binding binding)
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20 throws DatabaseException {
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22 return Bindings.adapt(getValue(graph, context), getBinding(), binding);
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23 } catch (AdaptException e) {
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24 throw new DatabaseException(e);
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29 public void setValue(WriteGraph graph, Variable context, Object value,
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30 Binding binding) throws DatabaseException {
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32 setValue(graph, context, Bindings.adapt(value, binding, getBinding()));
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33 } catch (AdaptException e) {
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34 throw new DatabaseException(e);
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39 public Datatype getDatatype(ReadGraph graph, Variable context) throws DatabaseException {
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40 return getBinding().type();
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