本文整理匯總了Java中org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigSplit.getSplitIndex方法的典型用法代碼示例。如果您正苦於以下問題：Java PigSplit.getSplitIndex方法的具體用法？Java PigSplit.getSplitIndex怎麽用？Java PigSplit.getSplitIndex使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigSplit的用法示例。
在下文中一共展示了PigSplit.getSplitIndex方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: prepareToRead
import org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigSplit; //導入方法依賴的package包/類
@Override
public void prepareToRead(RecordReader reader, PigSplit split) throws IOException {
// Save reader to use in getNext()
this.reader = reader;
splitIndex = split.getSplitIndex();
// Get schema from front-end
UDFContext udfc = UDFContext.getUDFContext();
Properties p = udfc.getUDFProperties(this.getClass(), new String[] { udfContextSignature });
String strSchema = p.getProperty(SCHEMA_SIGNATURE);
if (strSchema == null) {
throw new IOException("Could not find schema in UDF context");
}
schema = new ResourceSchema(Utils.getSchemaFromString(strSchema));
requiredFields = (boolean[]) ObjectSerializer.deserialize(p.getProperty(REQUIRED_FIELDS_SIGNATURE));
if (requiredFields != null) {
numRequiredFields = 0;
for (int i = 0; i < requiredFields.length; i++) {
if (requiredFields[i])
numRequiredFields++;
}
}
}
示例2: prepareToRead
import org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigSplit; //導入方法依賴的package包/類
@Override
public void prepareToRead(@SuppressWarnings("rawtypes") RecordReader reader, PigSplit split) {
in = reader;
splitIndex = split.getSplitIndex();
if (headerTreatment == Headers.DEFAULT) {
headerTreatment = Headers.READ_INPUT_HEADER;
}
}