package com.netflix.astyanax.entitystore;
import java.lang.reflect.Field;
import java.util.Iterator;
import com.netflix.astyanax.ColumnListMutation;
import com.netflix.astyanax.Serializer;
class LeafColumnMapper extends AbstractColumnMapper {
private final Serializer<?> serializer;
LeafColumnMapper(final Field field) {
super(field);
this.serializer = MappingUtils.getSerializerForField(field);
}
@Override
public String getColumnName() {
return columnName;
}
Serializer<?> getSerializer() {
return serializer;
}
@SuppressWarnings("unchecked")
@Override
public boolean fillMutationBatch(Object entity, ColumnListMutation<String> clm, String prefix) throws Exception {
Object value = field.get(entity);
if(value == null) {
if(columnAnnotation.nullable())
return false; // skip
else
throw new IllegalArgumentException("cannot write non-nullable column with null value: " + columnName);
}
@SuppressWarnings("rawtypes")
final Serializer valueSerializer = serializer;
// TODO: suppress the unchecked raw type now.
// we have to use the raw type to avoid compiling error
clm.putColumn(prefix + columnName, value, valueSerializer, null);
return true;
}
@Override
public boolean setField(Object entity, Iterator<String> name, com.netflix.astyanax.model.Column<String> column) throws Exception {
if (name.hasNext())
return false;
final Object fieldValue = column.getValue(serializer);
field.set(entity, fieldValue);
return true;
}
@Override
public void validate(Object entity) throws Exception {
if (field.get(entity) == null && !columnAnnotation.nullable())
throw new IllegalArgumentException("cannot find non-nullable column: " + columnName);
}
}