/
FloatStrategy.java
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/
FloatStrategy.java
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/*
* Copyright © 2014 - 2020 Leipzig University (Database Research Group)
*
* Licensed 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.gradoop.common.model.impl.properties.strategies;
import org.apache.flink.core.memory.DataInputView;
import org.gradoop.common.model.impl.properties.bytes.Bytes;
import org.gradoop.common.model.impl.properties.PropertyValue;
import org.gradoop.common.model.impl.properties.Type;
import java.io.IOException;
/**
* Strategy class for handling {@code PropertyValue} operations with a value of the type
* {@code Float}.
*/
public class FloatStrategy extends AbstractFixSizedPropertyValueStrategy<Float> {
@Override
public Float read(DataInputView inputView, byte typeByte) throws IOException {
int length = Bytes.SIZEOF_FLOAT;
byte[] rawBytes = new byte[length];
for (int i = 0; i < rawBytes.length; i++) {
rawBytes[i] = inputView.readByte();
}
return Bytes.toFloat(rawBytes);
}
@Override
public int compare(Float value, Object other) {
return PropertyValueStrategyUtils.compareNumerical(value, other);
}
@Override
public boolean is(Object value) {
return value instanceof Float;
}
@Override
public Class<Float> getType() {
return Float.class;
}
@Override
public Float get(byte[] bytes) {
return Bytes.toFloat(bytes, PropertyValue.OFFSET);
}
@Override
public byte getRawType() {
return Type.FLOAT.getTypeByte();
}
@Override
public byte[] getRawBytes(Float value) {
byte[] rawBytes = new byte[PropertyValue.OFFSET + Bytes.SIZEOF_FLOAT];
rawBytes[0] = getRawType();
Bytes.putFloat(rawBytes, PropertyValue.OFFSET, value);
return rawBytes;
}
}