本文整理汇总了Java中parquet.column.ColumnReader类的典型用法代码示例。如果您正苦于以下问题：Java ColumnReader类的具体用法？Java ColumnReader怎么用？Java ColumnReader使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
ColumnReader类属于parquet.column包，在下文中一共展示了ColumnReader类的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: bind
import parquet.column.ColumnReader; //导入依赖的package包/类
public RecordFilter bind(Iterable<ColumnReader> readers) {
return ColumnRecordFilter.column(
"ORDERDATE",
ColumnPredicates.applyFunctionToString(new BeforeDate())
).bind(readers);
}
示例2: bind
import parquet.column.ColumnReader; //导入依赖的package包/类
public RecordFilter bind(Iterable<ColumnReader> readers) {
return ColumnRecordFilter.column(
"SHIPDATE",
ColumnPredicates.applyFunctionToString(new AfterDate())
).bind(readers);
}
示例3: dump
import parquet.column.ColumnReader; //导入依赖的package包/类
public static void dump(PrettyPrintWriter out, ColumnReadStoreImpl crstore, ColumnDescriptor column, long page, long total, long offset) throws IOException {
int dmax = column.getMaxDefinitionLevel();
ColumnReader creader = crstore.getColumnReader(column);
out.format("*** row group %d of %d, values %d to %d ***%n", page, total, offset, offset + creader.getTotalValueCount() - 1);
for (long i = 0, e = creader.getTotalValueCount(); i < e; ++i) {
int rlvl = creader.getCurrentDefinitionLevel();
int dlvl = creader.getCurrentDefinitionLevel();
out.format("value %d: R:%d D:%d V:", offset+i, rlvl, dlvl);
if (dlvl == dmax) {
switch (column.getType()) {
case BINARY: out.format("%s", binaryToString(creader.getBinary())); break;
case BOOLEAN: out.format("%s", creader.getBoolean()); break;
case DOUBLE: out.format("%s", creader.getDouble()); break;
case FLOAT: out.format("%s", creader.getFloat()); break;
case INT32: out.format("%s", creader.getInteger()); break;
case INT64: out.format("%s", creader.getLong()); break;
case INT96: out.format("%s", binaryToBigInteger(creader.getBinary())); break;
case FIXED_LEN_BYTE_ARRAY: out.format("%s", binaryToString(creader.getBinary())); break;
}
} else {
out.format("<null>");
}
out.println();
creader.consume();
}
}
示例4: bind
import parquet.column.ColumnReader; //导入依赖的package包/类
@Override
public RecordFilter bind(Iterable<ColumnReader> readers) {
return filter.bind(readers);
}
示例5: bind
import parquet.column.ColumnReader; //导入依赖的package包/类
public RecordFilter bind(Iterable<ColumnReader> readers) {
return null;
}