本文整理汇总了Java中org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.isConstantObjectInspector方法的典型用法代码示例。如果您正苦于以下问题：Java ObjectInspectorUtils.isConstantObjectInspector方法的具体用法？Java ObjectInspectorUtils.isConstantObjectInspector怎么用？Java ObjectInspectorUtils.isConstantObjectInspector使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils的用法示例。
在下文中一共展示了ObjectInspectorUtils.isConstantObjectInspector方法的10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: getConstStringArray
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils; //导入方法依赖的package包/类
@Nullable
public static String[] getConstStringArray(@Nonnull final ObjectInspector oi)
throws UDFArgumentException {
if (!ObjectInspectorUtils.isConstantObjectInspector(oi)) {
throw new UDFArgumentException("argument must be a constant value: "
+ TypeInfoUtils.getTypeInfoFromObjectInspector(oi));
}
ConstantObjectInspector constOI = (ConstantObjectInspector) oi;
if (constOI.getCategory() != Category.LIST) {
throw new UDFArgumentException("argument must be an array: "
+ TypeInfoUtils.getTypeInfoFromObjectInspector(oi));
}
final List<?> lst = (List<?>) constOI.getWritableConstantValue();
if (lst == null) {
return null;
}
final int size = lst.size();
final String[] ary = new String[size];
for (int i = 0; i < size; i++) {
Object o = lst.get(i);
if (o != null) {
ary[i] = o.toString();
}
}
return ary;
}
示例2: getConstValue
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils; //导入方法依赖的package包/类
@SuppressWarnings("unchecked")
@Nullable
public static <T extends Writable> T getConstValue(@Nonnull final ObjectInspector oi)
throws UDFArgumentException {
if (!ObjectInspectorUtils.isConstantObjectInspector(oi)) {
throw new UDFArgumentException("argument must be a constant value: "
+ TypeInfoUtils.getTypeInfoFromObjectInspector(oi));
}
ConstantObjectInspector constOI = (ConstantObjectInspector) oi;
Object v = constOI.getWritableConstantValue();
return (T) v;
}
示例3: getConstDoubleArray
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils; //导入方法依赖的package包/类
@Nullable
public static double[] getConstDoubleArray(@Nonnull final ObjectInspector oi)
throws UDFArgumentException {
if (!ObjectInspectorUtils.isConstantObjectInspector(oi)) {
throw new UDFArgumentException("argument must be a constant value: "
+ TypeInfoUtils.getTypeInfoFromObjectInspector(oi));
}
ConstantObjectInspector constOI = (ConstantObjectInspector) oi;
if (constOI.getCategory() != Category.LIST) {
throw new UDFArgumentException("argument must be an array: "
+ TypeInfoUtils.getTypeInfoFromObjectInspector(oi));
}
StandardConstantListObjectInspector listOI = (StandardConstantListObjectInspector) constOI;
PrimitiveObjectInspector elemOI = HiveUtils.asDoubleCompatibleOI(listOI.getListElementObjectInspector());
final List<?> lst = listOI.getWritableConstantValue();
if (lst == null) {
return null;
}
final int size = lst.size();
final double[] ary = new double[size];
for (int i = 0; i < size; i++) {
Object o = lst.get(i);
if (o == null) {
ary[i] = Double.NaN;
} else {
ary[i] = PrimitiveObjectInspectorUtils.getDouble(o, elemOI);
}
}
return ary;
}
示例4: asConstantObjectInspector
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils; //导入方法依赖的package包/类
@Nonnull
public static ConstantObjectInspector asConstantObjectInspector(
@Nonnull final ObjectInspector oi) throws UDFArgumentException {
if (!ObjectInspectorUtils.isConstantObjectInspector(oi)) {
throw new UDFArgumentException("argument must be a constant value: "
+ TypeInfoUtils.getTypeInfoFromObjectInspector(oi));
}
return (ConstantObjectInspector) oi;
}
示例5: isConstListOI
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils; //导入方法依赖的package包/类
public static boolean isConstListOI(@Nonnull final ObjectInspector oi) {
return ObjectInspectorUtils.isConstantObjectInspector(oi) && isListOI(oi);
}
示例6: isConstString
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils; //导入方法依赖的package包/类
public static boolean isConstString(@Nonnull final ObjectInspector oi) {
return ObjectInspectorUtils.isConstantObjectInspector(oi) && isStringOI(oi);
}
示例7: isConstInt
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils; //导入方法依赖的package包/类
public static boolean isConstInt(@Nonnull final ObjectInspector oi) {
return ObjectInspectorUtils.isConstantObjectInspector(oi) && isIntOI(oi);
}
示例8: isConstInteger
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils; //导入方法依赖的package包/类
public static boolean isConstInteger(@Nonnull final ObjectInspector oi) {
return ObjectInspectorUtils.isConstantObjectInspector(oi) && isIntegerOI(oi);
}
示例9: isConstBoolean
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils; //导入方法依赖的package包/类
public static boolean isConstBoolean(@Nonnull final ObjectInspector oi) {
return ObjectInspectorUtils.isConstantObjectInspector(oi) && isBooleanOI(oi);
}
示例10: initialize
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils; //导入方法依赖的package包/类
@Override
public StructObjectInspector initialize(ObjectInspector[] argOIs) throws UDFArgumentException {
final int numArgs = argOIs.length;
if (numArgs < 4) {
throw new UDFArgumentException(
"each_top_k(int K, Object group, double cmpKey, *) takes at least 4 arguments: "
+ numArgs);
}
this.argOIs = argOIs;
this._constantK = ObjectInspectorUtils.isConstantObjectInspector(argOIs[0]);
if (_constantK) {
final int k = HiveUtils.getAsConstInt(argOIs[0]);
if (k == 0) {
throw new UDFArgumentException("k should not be 0");
}
this._queue = getQueue(k);
} else {
this.kOI = HiveUtils.asIntCompatibleOI(argOIs[0]);
this._prevK = 0;
}
this.prevGroupOI = ObjectInspectorUtils.getStandardObjectInspector(argOIs[1],
ObjectInspectorCopyOption.DEFAULT);
this.cmpKeyOI = HiveUtils.asDoubleCompatibleOI(argOIs[2]);
this._tuple = null;
this._previousGroup = null;
final ArrayList<String> fieldNames = new ArrayList<String>(numArgs);
final ArrayList<ObjectInspector> fieldOIs = new ArrayList<ObjectInspector>(numArgs);
fieldNames.add("rank");
fieldOIs.add(PrimitiveObjectInspectorFactory.writableIntObjectInspector);
fieldNames.add("key");
fieldOIs.add(PrimitiveObjectInspectorFactory.writableDoubleObjectInspector);
for (int i = 3; i < numArgs; i++) {
fieldNames.add("c" + (i - 2));
ObjectInspector rawOI = argOIs[i];
ObjectInspector retOI = ObjectInspectorUtils.getStandardObjectInspector(rawOI,
ObjectInspectorCopyOption.DEFAULT);
fieldOIs.add(retOI);
}
return ObjectInspectorFactory.getStandardStructObjectInspector(fieldNames, fieldOIs);
}