org.apache.phoenix.hive.util

Class TypeInfoUtils

java.lang.Object

org.apache.phoenix.hive.util.TypeInfoUtils

public final class TypeInfoUtils
extends java.lang.Object

TypeInfoUtils.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TypeInfoUtils.PrimitiveParts

Field Summary

Fields

Modifier and Type	Field and Description
static java.util.List<org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector.PrimitiveCategory>	numericTypeList
static java.util.EnumMap<org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector.PrimitiveCategory,java.lang.Integer>	numericTypes

Method Summary

Modifier and Type	Method and Description
static boolean	doPrimitiveCategoriesMatch(org.apache.hadoop.hive.serde2.typeinfo.TypeInfo ti1, org.apache.hadoop.hive.serde2.typeinfo.TypeInfo ti2) returns true if both TypeInfos are of primitive type, and the primitive category matches.
static java.lang.reflect.Type	getArrayElementType(java.lang.reflect.Type t) Returns the array element type, if the Type is an array (Object[]), or GenericArrayType (Map<String,String>[]).
static java.lang.String	getBaseName(java.lang.String typeName)
static int	getCharacterLengthForType(org.apache.hadoop.hive.serde2.typeinfo.PrimitiveTypeInfo typeInfo) Return the character length of the type
static java.util.List<org.apache.hadoop.hive.serde2.typeinfo.TypeInfo>	getParameterTypeInfos(java.lang.reflect.Method m, int size) Get the parameter TypeInfo for a method.
static org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector	getStandardJavaObjectInspectorFromTypeInfo(org.apache.hadoop.hive.serde2.typeinfo.TypeInfo typeInfo) Returns the standard object inspector that can be used to translate an object of that typeInfo to a standard object type.
static org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector	getStandardWritableObjectInspectorFromTypeInfo(org.apache.hadoop.hive.serde2.typeinfo.TypeInfo typeInfo) Returns the standard object inspector that can be used to translate an object of that typeInfo to a standard object type.
static org.apache.hadoop.hive.serde2.typeinfo.TypeInfo	getTypeInfoFromObjectInspector(org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector oi) Get the TypeInfo object from the ObjectInspector object by recursively going into the ObjectInspector structure.
static org.apache.hadoop.hive.serde2.typeinfo.TypeInfo	getTypeInfoFromTypeString(java.lang.String typeString)
static java.util.ArrayList<org.apache.hadoop.hive.serde2.typeinfo.TypeInfo>	getTypeInfosFromTypeString(java.lang.String typeString)
static java.util.List<java.lang.String>	getTypeStringsFromTypeInfo(java.util.List<org.apache.hadoop.hive.serde2.typeinfo.TypeInfo> typeInfos)
static boolean	hasParameters(java.lang.String typeName)
static boolean	implicitConvertible(org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector.PrimitiveCategory from, org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector.PrimitiveCategory to)
static boolean	implicitConvertible(org.apache.hadoop.hive.serde2.typeinfo.TypeInfo from, org.apache.hadoop.hive.serde2.typeinfo.TypeInfo to) Returns whether it is possible to implicitly convert an object of Class from to Class to.
static boolean	isConversionRequiredForComparison(org.apache.hadoop.hive.serde2.typeinfo.TypeInfo typeA, org.apache.hadoop.hive.serde2.typeinfo.TypeInfo typeB) Given two types, determine whether conversion needs to occur to compare the two types.
static TypeInfoUtils.PrimitiveParts	parsePrimitiveParts(java.lang.String typeInfoString) Make some of the TypeInfo parsing available as a utility.
static void	registerNumericType(org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector.PrimitiveCategory primitiveCategory, int level)
static java.util.ArrayList<org.apache.hadoop.hive.serde2.typeinfo.TypeInfo>	typeInfosFromStructObjectInspector(org.apache.hadoop.hive.serde2.objectinspector.StructObjectInspector structObjectInspector)
static java.util.ArrayList<org.apache.hadoop.hive.serde2.typeinfo.TypeInfo>	typeInfosFromTypeNames(java.util.List<java.lang.String> typeNames)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

numericTypeList

public static java.util.List<org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector.PrimitiveCategory> numericTypeList

numericTypes

public static java.util.EnumMap<org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector.PrimitiveCategory,java.lang.Integer> numericTypes

Method Detail

getArrayElementType

public static java.lang.reflect.Type getArrayElementType(java.lang.reflect.Type t)

Returns the array element type, if the Type is an array (Object[]), or GenericArrayType (Map<String,String>[]). Otherwise return null.

getParameterTypeInfos

public static java.util.List<org.apache.hadoop.hive.serde2.typeinfo.TypeInfo> getParameterTypeInfos(java.lang.reflect.Method m,
                                                                                                    int size)

Get the parameter TypeInfo for a method.

Parameters:

size - In case the last parameter of Method is an array, we will try to return a List<TypeInfo> with the specified size by repeating the element of the array at the end. In case the size is smaller than the minimum possible number of arguments for the method, null will be returned.

hasParameters

public static boolean hasParameters(java.lang.String typeName)

getBaseName

public static java.lang.String getBaseName(java.lang.String typeName)

doPrimitiveCategoriesMatch

public static boolean doPrimitiveCategoriesMatch(org.apache.hadoop.hive.serde2.typeinfo.TypeInfo ti1,
                                                 org.apache.hadoop.hive.serde2.typeinfo.TypeInfo ti2)

returns true if both TypeInfos are of primitive type, and the primitive category matches.

Parameters:

ti1 -

ti2 -

Returns:

parsePrimitiveParts

public static TypeInfoUtils.PrimitiveParts parsePrimitiveParts(java.lang.String typeInfoString)

Make some of the TypeInfo parsing available as a utility.

getStandardWritableObjectInspectorFromTypeInfo

public static org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector getStandardWritableObjectInspectorFromTypeInfo(org.apache.hadoop.hive.serde2.typeinfo.TypeInfo typeInfo)

Returns the standard object inspector that can be used to translate an object of that typeInfo to a standard object type.

getStandardJavaObjectInspectorFromTypeInfo

public static org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector getStandardJavaObjectInspectorFromTypeInfo(org.apache.hadoop.hive.serde2.typeinfo.TypeInfo typeInfo)

Returns the standard object inspector that can be used to translate an object of that typeInfo to a standard object type.

getTypeInfoFromObjectInspector

public static org.apache.hadoop.hive.serde2.typeinfo.TypeInfo getTypeInfoFromObjectInspector(org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector oi)

Get the TypeInfo object from the ObjectInspector object by recursively going into the ObjectInspector structure.

typeInfosFromStructObjectInspector

public static java.util.ArrayList<org.apache.hadoop.hive.serde2.typeinfo.TypeInfo> typeInfosFromStructObjectInspector(org.apache.hadoop.hive.serde2.objectinspector.StructObjectInspector structObjectInspector)

typeInfosFromTypeNames

public static java.util.ArrayList<org.apache.hadoop.hive.serde2.typeinfo.TypeInfo> typeInfosFromTypeNames(java.util.List<java.lang.String> typeNames)

getTypeInfosFromTypeString

public static java.util.ArrayList<org.apache.hadoop.hive.serde2.typeinfo.TypeInfo> getTypeInfosFromTypeString(java.lang.String typeString)

getTypeStringsFromTypeInfo

public static java.util.List<java.lang.String> getTypeStringsFromTypeInfo(java.util.List<org.apache.hadoop.hive.serde2.typeinfo.TypeInfo> typeInfos)

getTypeInfoFromTypeString

public static org.apache.hadoop.hive.serde2.typeinfo.TypeInfo getTypeInfoFromTypeString(java.lang.String typeString)

isConversionRequiredForComparison

public static boolean isConversionRequiredForComparison(org.apache.hadoop.hive.serde2.typeinfo.TypeInfo typeA,
                                                        org.apache.hadoop.hive.serde2.typeinfo.TypeInfo typeB)

Given two types, determine whether conversion needs to occur to compare the two types. This is needed for cases like varchar, where the TypeInfo for varchar(10) != varchar(5), but there would be no need to have to convert to compare these values.

Parameters:

typeA -

typeB -

Returns:

getCharacterLengthForType

public static int getCharacterLengthForType(org.apache.hadoop.hive.serde2.typeinfo.PrimitiveTypeInfo typeInfo)

Return the character length of the type

Parameters:

typeInfo -

Returns:

registerNumericType

public static void registerNumericType(org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector.PrimitiveCategory primitiveCategory,
                                       int level)

implicitConvertible

public static boolean implicitConvertible(org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector.PrimitiveCategory from,
                                          org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector.PrimitiveCategory to)

implicitConvertible

public static boolean implicitConvertible(org.apache.hadoop.hive.serde2.typeinfo.TypeInfo from,
                                          org.apache.hadoop.hive.serde2.typeinfo.TypeInfo to)

Returns whether it is possible to implicitly convert an object of Class from to Class to.