org.apache.hudi.expression.BoundReference Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hudi.expression;
import org.apache.hudi.internal.schema.Type;
public class BoundReference extends LeafExpression {
private final int ordinal;
private final Type type;
public BoundReference(int ordinal, Type type) {
this.ordinal = ordinal;
this.type = type;
}
@Override
public Type getDataType() {
return type;
}
@Override
public Object eval(StructLike data) {
return data.get(ordinal, this.type.typeId().getClassTag());
}
@Override
public T accept(ExpressionVisitor exprVisitor) {
return exprVisitor.visitBoundReference(this);
}
@Override
public String toString() {
return "boundReference[ordinal: " + ordinal + ", type: "
+ type.typeId().getName() + "]";
}
}