org.apache.storm.tuple.TupleImpl 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, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.storm.tuple;
import java.util.List;
/**
* The tuple is the main data structure in Storm. A tuple is a named list of values,
* where each value can be any type. Tuples are dynamically typed -- the types of the fields
* do not need to be declared. Tuples have helper methods like getInteger and getString
* to get field values without having to cast the result.
*
* Storm needs to know how to serialize all the values in a tuple. By default, Storm
* knows how to serialize the primitive types, strings, and byte arrays. If you want to
* use another type, you'll need to implement and register a serializer for that type.
* @see Storm serialization
*/
public class TupleImpl implements Tuple {
private org.apache.heron.api.tuple.Tuple delegate;
public TupleImpl(org.apache.heron.api.tuple.Tuple t) {
delegate = t;
}
public org.apache.heron.api.tuple.Tuple getDelegate() {
return delegate;
}
/**
* Returns the number of fields in this tuple.
*/
public int size() {
return delegate.size();
}
/**
* Returns the position of the specified field in this tuple.
*/
public int fieldIndex(String field) {
return delegate.fieldIndex(field);
}
/**
* Returns true if this tuple contains the specified name of the field.
*/
public boolean contains(String field) {
return delegate.contains(field);
}
/**
* Gets the field at position i in the tuple. Returns object since tuples are dynamically typed.
*/
public Object getValue(int i) {
return delegate.getValue(i);
}
/**
* Returns the String at position i in the tuple. If that field is not a String,
* you will get a runtime error.
*/
public String getString(int i) {
return delegate.getString(i);
}
/**
* Returns the Integer at position i in the tuple. If that field is not an Integer,
* you will get a runtime error.
*/
public Integer getInteger(int i) {
return delegate.getInteger(i);
}
/**
* Returns the Long at position i in the tuple. If that field is not a Long,
* you will get a runtime error.
*/
public Long getLong(int i) {
return delegate.getLong(i);
}
/**
* Returns the Boolean at position i in the tuple. If that field is not a Boolean,
* you will get a runtime error.
*/
public Boolean getBoolean(int i) {
return delegate.getBoolean(i);
}
/**
* Returns the Short at position i in the tuple. If that field is not a Short,
* you will get a runtime error.
*/
public Short getShort(int i) {
return delegate.getShort(i);
}
/**
* Returns the Byte at position i in the tuple. If that field is not a Byte,
* you will get a runtime error.
*/
public Byte getByte(int i) {
return delegate.getByte(i);
}
/**
* Returns the Double at position i in the tuple. If that field is not a Double,
* you will get a runtime error.
*/
public Double getDouble(int i) {
return delegate.getDouble(i);
}
/**
* Returns the Float at position i in the tuple. If that field is not a Float,
* you will get a runtime error.
*/
public Float getFloat(int i) {
return delegate.getFloat(i);
}
/**
* Returns the byte array at position i in the tuple. If that field is not a byte array,
* you will get a runtime error.
*/
public byte[] getBinary(int i) {
return delegate.getBinary(i);
}
public Object getValueByField(String field) {
return delegate.getValueByField(field);
}
public String getStringByField(String field) {
return delegate.getStringByField(field);
}
public Integer getIntegerByField(String field) {
return delegate.getIntegerByField(field);
}
public Long getLongByField(String field) {
return delegate.getLongByField(field);
}
public Boolean getBooleanByField(String field) {
return delegate.getBooleanByField(field);
}
public Short getShortByField(String field) {
return delegate.getShortByField(field);
}
public Byte getByteByField(String field) {
return delegate.getByteByField(field);
}
public Double getDoubleByField(String field) {
return delegate.getDoubleByField(field);
}
public Float getFloatByField(String field) {
return delegate.getFloatByField(field);
}
public byte[] getBinaryByField(String field) {
return delegate.getBinaryByField(field);
}
/**
* Gets all the values in this tuple.
*/
public List