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DataMapRow.java
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DataMapRow.java
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/*
* 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.carbondata.core.indexstore.row;
import java.io.Serializable;
import org.apache.carbondata.core.indexstore.schema.CarbonRowSchema;
/**
* It is just a normal row to store data. Implementation classes could be safe and unsafe.
* TODO move this class a global row and use across loading after DataType is changed class
*/
public abstract class DataMapRow implements Serializable {
/**
* This is made transient as it is temporary and should not be serialized
*/
protected transient CarbonRowSchema[] schemas;
public DataMapRow(CarbonRowSchema[] schemas) {
this.schemas = schemas;
}
public abstract byte[] getByteArray(int ordinal);
public abstract byte[] getByteArray(int ordinal, int position);
public abstract DataMapRow getRow(int ordinal);
public abstract DataMapRow getRow(int ordinal, int position);
public abstract void setRow(DataMapRow row, int ordinal);
public abstract void setByteArray(byte[] byteArray, int ordinal);
public abstract int getInt(int ordinal);
public abstract void setInt(int value, int ordinal);
public abstract void setByte(byte value, int ordinal);
public abstract byte getByte(int ordinal);
public abstract void setShort(short value, int ordinal);
public abstract short getShort(int ordinal);
public abstract void setLong(long value, int ordinal);
public abstract long getLong(int ordinal);
public abstract void setFloat(float value, int ordinal);
public abstract float getFloat(int ordinal);
public abstract void setDouble(double value, int ordinal);
public abstract double getDouble(int ordinal);
public abstract int getLengthInBytes(int ordinal);
public abstract void setBoolean(boolean value, int ordinal);
public abstract boolean getBoolean(int ordinal);
public int getTotalSizeInBytes() {
int len = 0;
for (int i = 0; i < schemas.length; i++) {
len += getSizeInBytes(i);
}
return len;
}
public int getSizeInBytes(int ordinal) {
switch (schemas[ordinal].getSchemaType()) {
case FIXED:
return schemas[ordinal].getLength();
case VARIABLE_SHORT:
return getLengthInBytes(ordinal) + 2;
case VARIABLE_INT:
return getLengthInBytes(ordinal) + 4;
case STRUCT:
DataMapRow row = getRow(ordinal);
CarbonRowSchema[] childSchemas =
((CarbonRowSchema.StructCarbonRowSchema) schemas[ordinal]).getChildSchemas();
// set the child schema. Because schema is transient it can be null
row.setSchemas(childSchemas);
return getRow(ordinal).getTotalSizeInBytes();
default:
throw new UnsupportedOperationException("wrong type");
}
}
public int getColumnCount() {
return schemas.length;
}
/**
* default implementation
*
* @return
*/
public DataMapRow convertToSafeRow(int ordinal, int position) {
return this;
}
public void setSchemas(CarbonRowSchema[] schemas) {
if (null == this.schemas) {
this.schemas = schemas;
}
}
public int getPosition() {
return 0;
}
public int getCurrentPointer() {
return 0;
}
}