org.elasticsearch.index.fielddata.IndexNumericFieldData Maven / Gradle / Ivy
/*
* Licensed to ElasticSearch and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. ElasticSearch 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.elasticsearch.index.fielddata;
import org.apache.lucene.index.AtomicReaderContext;
/**
*/
public interface IndexNumericFieldData extends IndexFieldData {
static enum NumericType {
BYTE {
@Override
public boolean isFloatingPoint() {
return false;
}
@Override
public int requiredBits() {
return 8;
}
},
SHORT {
@Override
public boolean isFloatingPoint() {
return false;
}
@Override
public int requiredBits() {
return 16;
}
},
INT {
@Override
public boolean isFloatingPoint() {
return false;
}
@Override
public int requiredBits() {
return 32;
}
},
LONG {
@Override
public boolean isFloatingPoint() {
return false;
}
@Override
public int requiredBits() {
return 64;
}
},
FLOAT {
@Override
public boolean isFloatingPoint() {
return true;
}
@Override
public int requiredBits() {
return 32;
}
},
DOUBLE {
@Override
public boolean isFloatingPoint() {
return true;
}
@Override
public int requiredBits() {
return 64;
}
};
public abstract boolean isFloatingPoint();
public abstract int requiredBits();
}
NumericType getNumericType();
/**
* Loads the atomic field data for the reader, possibly cached.
*/
FD load(AtomicReaderContext context);
/**
* Loads directly the atomic field data for the reader, ignoring any caching involved.
*/
FD loadDirect(AtomicReaderContext context) throws Exception;
}