org.apache.hive.hplsql

Class Var

java.lang.Object

org.apache.hive.hplsql.Var

public class Var
extends Object

Variable or the result of expression

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Var.Type

Field Summary

Fields

Modifier and Type	Field and Description
static String	DERIVED_ROWTYPE
static String	DERIVED_TYPE
static Var	Empty
String	name
static Var	Null
Var.Type	type
Object	value

Constructor Summary

Constructors

Constructor and Description
Var()
Var(ArrayList<String> value)
Var(BigDecimal value)
Var(Boolean b)
Var(Date value)
Var(Double value)
Var(Interval value)
Var(Long value)
Var(String value)
Var(String name, Long value)
Var(String name, Row row)
Var(String name, String type, Integer len, Integer scale, Var def)
Var(String name, String type, String len, String scale, Var def)
Var(String name, Var.Type type, Object value)
Var(Timestamp value, int scale)
Var(Var.Type type)
Var(Var.Type type, Object value)
Var(Var.Type type, String name)
Var(Var var)

Method Summary

Modifier and Type	Method and Description
Var	cast(String val) Cast a new string value to the variable
Var	cast(Var val) Cast a new value to the variable
int	compareTo(Var v) Compare values
BigDecimal	decimalValue() Return a decimal value
Var	decrement(long i) Decrement an integer value
static Var.Type	defineType(int type) Define the data type from JDBC type code
static Var.Type	defineType(String type) Define the data type from string representation
double	doubleValue() Return a double value
boolean	equals(BigDecimal d, Long i) Check if variables of different data types are equal
boolean	equals(Object obj) Compare values
String	getName() Get variable name
Var	increment(long i) Increment an integer value
int	intValue() Return an integer value
boolean	isNull() Check if the variable contains NULL
boolean	isTrue() Return true/false for BOOL type
long	longValue() Return a long integer value
void	negate() Negate the value
BigDecimal	percentDiff(Var var) Calculate difference between values in percent
void	removeValue() Remove value
void	setName(String name) Set variable name
Var	setRowValues(QueryResult queryResult)
void	setType(String type) Set the data type from string representation
Var	setValue(Boolean val)
Var	setValue(Long val)
void	setValue(Object value)
Var	setValue(QueryResult queryResult, int idx)
void	setValue(String str) Set the new value
String	toSqlString() Convert value to SQL string - string literals are quoted and escaped, ab'c -> 'ab''c'
String	toString() Convert value to String

Methods inherited from class java.lang.Object

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

Field Detail

DERIVED_TYPE

public static final String DERIVED_TYPE

See Also:

Constant Field Values

DERIVED_ROWTYPE

public static final String DERIVED_ROWTYPE

See Also:

Constant Field Values

Empty

public static Var Empty

Null

public static Var Null

name

public String name

type

public Var.Type type

value

public Object value

Constructor Detail

Var

public Var()

Var

public Var(Var var)

Var

public Var(Long value)

Var

public Var(BigDecimal value)

Var

public Var(String name,
           Long value)

Var

public Var(String value)

Var

public Var(Double value)

Var

public Var(Date value)

Var

public Var(Timestamp value,
           int scale)

Var

public Var(Interval value)

Var

public Var(ArrayList<String> value)

Var

public Var(Boolean b)

Var

public Var(String name,
           Row row)

Var

public Var(Var.Type type,
           String name)

Var

public Var(Var.Type type,
           Object value)

Var

public Var(String name,
           Var.Type type,
           Object value)

Var

public Var(Var.Type type)

Var

public Var(String name,
           String type,
           Integer len,
           Integer scale,
           Var def)

Var

public Var(String name,
           String type,
           String len,
           String scale,
           Var def)

Method Detail

cast

public Var cast(Var val)

Cast a new value to the variable

cast

public Var cast(String val)

Cast a new string value to the variable

setValue

public void setValue(String str)

Set the new value

setValue

public Var setValue(Long val)

setValue

public Var setValue(Boolean val)

setValue

public void setValue(Object value)

setValue

public Var setValue(QueryResult queryResult,
                    int idx)

setRowValues

public Var setRowValues(QueryResult queryResult)

setType

public void setType(String type)

Set the data type from string representation

defineType

public static Var.Type defineType(String type)

Define the data type from string representation

defineType

public static Var.Type defineType(int type)

Define the data type from JDBC type code

removeValue

public void removeValue()

Remove value

equals

public boolean equals(Object obj)

Compare values

Overrides:

equals in class Object

equals

public boolean equals(BigDecimal d,
                      Long i)

Check if variables of different data types are equal

compareTo

public int compareTo(Var v)

Compare values

percentDiff

public BigDecimal percentDiff(Var var)

Calculate difference between values in percent

increment

public Var increment(long i)

Increment an integer value

decrement

public Var decrement(long i)

Decrement an integer value

intValue

public int intValue()

Return an integer value

longValue

public long longValue()

Return a long integer value

decimalValue

public BigDecimal decimalValue()

Return a decimal value

doubleValue

public double doubleValue()

Return a double value

isTrue

public boolean isTrue()

Return true/false for BOOL type

negate

public void negate()

Negate the value

isNull

public boolean isNull()

Check if the variable contains NULL

toString

public String toString()

Convert value to String

Overrides:

toString in class Object

toSqlString

public String toSqlString()

Convert value to SQL string - string literals are quoted and escaped, ab'c -> 'ab''c'

setName

public void setName(String name)

Set variable name

getName

public String getName()

Get variable name