com.pervasive.datarush.sequences.scalar

Class DoubleTokenList

java.lang.Object

com.pervasive.datarush.sequences.scalar.AbstractScalarTokenSequence

com.pervasive.datarush.sequences.scalar.DoubleTokenList

All Implemented Interfaces:

MutableTokenSequence, DoubleTokenSequence, MutableDoubleTokenSequence, MutableScalarTokenSequence, NumericTokenSequence, ScalarTokenAppendable, ScalarTokenSequence, TokenAppendable, TokenSequence, ScalarTyped, TokenTyped

public final class DoubleTokenList
extends AbstractScalarTokenSequence
implements MutableDoubleTokenSequence

Primary implementation of MutableDoubleTokenSequence.

See Also:

TokenTypeConstant.DOUBLE

Constructor Summary

Constructors

Constructor and Description
DoubleTokenList(int capacity) Create an empty array

Method Summary

Modifier and Type	Method and Description
void	append(double value) Appends the specified double to this sequence.
void	append(double value, int count) Appends the specified double to this sequence multiple times.
void	fill(int start, int length, double value) Sets the tokens in the specified subsequence to the given double value.
void	fillValue(int start, int length, TokenValued value) Sets the tokens in the specified subsequence to the given value.
BigDecimal	getBigDecimal(int i) Gets the value of the specified token as a BigDecimal.
double	getDouble(int i) Gets the value of the specified token as a double.
DoubleValued	getToken(int index) Gets the value at the specified position.
DoubleSettable	getTokenSetter(int index) Returns a mutator for the given index.
ScalarTokenType	getType() Gets the data type of the tokens in the sequence.
void	getValues(int index, BigDecimal[] values, boolean[] nullFlags, int offset, int length) Gets the values and null indicators for a range of tokens as BigDecimal objects.
void	getValues(int index, double[] values, boolean[] nullFlags, int offset, int length) Gets the values and null indicators for a range of tokens as doubles.
boolean	isZero(int index) Indicates whether the specified token has a zero value.
DoubleValuedIterator	newValueIterator() Creates an iterator over the non-null values of this sequence.
void	setDouble(int index, double value) Sets the token at the specified position to the given double value.
void	setNull(int index) Sets the token at the specified position to be null valued.
void	setNull(int start, int length) Sets the tokens in the specified subsequence to be null valued.
void	setValue(int index, TokenValued value) Sets the token at the specified position to the given value.
void	setValues(int start, TokenSequence values, int offset, int length) Sets the tokens in the specified subsequence of the array to the corresponding values from a subsequence of the given source sequence.
void	setZero(int index) Sets the token at the specified position to be zero valued.
void	setZero(int start, int length) Sets the tokens in the specified subsequence to be zero valued.

Methods inherited from class com.pervasive.datarush.sequences.scalar.AbstractScalarTokenSequence

append, append, append, append, appendNull, appendNull, appendZero, appendZero, capacity, compareElement, compareElements, ensureCanonical, getElementComparator, getModificationCount, hashCode, isNull, isNull, map, remaining, reset, size, toString, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.pervasive.datarush.sequences.scalar.ScalarTokenSequence

isNull

Methods inherited from interface com.pervasive.datarush.sequences.TokenSequence

compareElement, compareElements, getElementComparator, hashCode, isNull, size, toString

Methods inherited from interface com.pervasive.datarush.sequences.scalar.MutableScalarTokenSequence

ensureCanonical, getModificationCount

Methods inherited from interface com.pervasive.datarush.sequences.MutableTokenSequence

appendNull, appendNull, appendZero, appendZero, reset

Methods inherited from interface com.pervasive.datarush.sequences.TokenAppendable

append, append, append, append

Constructor Detail

DoubleTokenList

public DoubleTokenList(int capacity)

Create an empty array

Parameters:

capacity - the initial capacity.

Method Detail

getType

public ScalarTokenType getType()

Description copied from interface: ScalarTokenSequence

Gets the data type of the tokens in the sequence.

Specified by:

getType in interface ScalarTokenSequence

Specified by:

getType in interface ScalarTyped

Specified by:

getType in interface TokenTyped

Returns:

the token data type

getBigDecimal

public BigDecimal getBigDecimal(int i)

Description copied from interface: NumericTokenSequence

Gets the value of the specified token as a BigDecimal.

Specified by:

getBigDecimal in interface NumericTokenSequence

Parameters:

i - the position of the token in the sequence

Returns:

the value of the token. If the token is null valued, null is returned.

getDouble

public double getDouble(int i)

Description copied from interface: DoubleTokenSequence

Gets the value of the specified token as a double.

Specified by:

getDouble in interface DoubleTokenSequence

Parameters:

i - the position of the token in the sequence

Returns:

the value of the token. If the token is null valued, Double.NaN is returned.

getToken

public DoubleValued getToken(int index)

Description copied from interface: TokenSequence

Gets the value at the specified position.

Specified by:

getToken in interface DoubleTokenSequence

Specified by:

getToken in interface NumericTokenSequence

Specified by:

getToken in interface ScalarTokenSequence

Specified by:

getToken in interface TokenSequence

Parameters:

index - the index of the token

Returns:

the value

getTokenSetter

public DoubleSettable getTokenSetter(int index)

Description copied from interface: MutableTokenSequence

Returns a mutator for the given index.

Specified by:

getTokenSetter in interface MutableTokenSequence

Specified by:

getTokenSetter in interface MutableDoubleTokenSequence

Specified by:

getTokenSetter in interface MutableScalarTokenSequence

Parameters:

index - the position

Returns:

a mutator for the given index.

getValues

public void getValues(int index,
                      double[] values,
                      boolean[] nullFlags,
                      int offset,
                      int length)

Description copied from interface: DoubleTokenSequence

Gets the values and null indicators for a range of tokens as doubles.

Specified by:

getValues in interface DoubleTokenSequence

Parameters:

index - the starting index of the range

values - an array into which to place element values

nullFlags - an array into which to place null indicator values

offset - the starting offset into the target arrays. That is, elements[offset] and nulls[offset] will get the value and null indicator respectively of the token at position start, and so on.

length - number of tokens to get

getValues

public void getValues(int index,
                      BigDecimal[] values,
                      boolean[] nullFlags,
                      int offset,
                      int length)

Description copied from interface: NumericTokenSequence

Gets the values and null indicators for a range of tokens as BigDecimal objects.

Specified by:

getValues in interface NumericTokenSequence

Parameters:

index - the starting index of the range

values - an array into which to place element values

nullFlags - an array into which to place null indicator values

offset - the starting offset into the target arrays. That is, elements[offset] and nulls[offset] will get the value and null indicator respectively of the token at position start, and so on.

length - number of tokens to get

setNull

public void setNull(int index)

Description copied from interface: MutableTokenSequence

Sets the token at the specified position to be null valued.

Specified by:

setNull in interface MutableTokenSequence

Parameters:

index - the position of the token in the array

setNull

public void setNull(int start,
                    int length)

Description copied from interface: MutableTokenSequence

Sets the tokens in the specified subsequence to be null valued.

Specified by:

setNull in interface MutableTokenSequence

Parameters:

start - the starting index of the subsequence in the array

length - the length of the subsequence

setDouble

public void setDouble(int index,
                      double value)

Sets the token at the specified position to the given double value.

Specified by:

setDouble in interface MutableDoubleTokenSequence

Parameters:

index - the position of the token in the array

value - the double value to which to set the token. Passing Double.NaN is equivalent to calling setNull(index).

fill

public void fill(int start,
                 int length,
                 double value)

Sets the tokens in the specified subsequence to the given double value.

Parameters:

start - the starting index of the subsequence in the array

length - the length of the subsequence

value - the double value to which to set the tokens. Passing Double.NaN is equivalent to calling setNull(start, length).

setZero

public void setZero(int index)

Description copied from interface: MutableTokenSequence

Sets the token at the specified position to be zero valued.

Specified by:

setZero in interface MutableTokenSequence

Parameters:

index - the position of the token in the array

setZero

public void setZero(int start,
                    int length)

Description copied from interface: MutableTokenSequence

Sets the tokens in the specified subsequence to be zero valued.

Specified by:

setZero in interface MutableTokenSequence

Parameters:

start - the starting index of the subsequence in the array

length - the length of the subsequence

isZero

public final boolean isZero(int index)

Description copied from interface: ScalarTokenSequence

Indicates whether the specified token has a zero value.

Specified by:

isZero in interface ScalarTokenSequence

Parameters:

index - the index of the token

Returns:

true if the element is zero, false otherwise

setValue

public void setValue(int index,
                     TokenValued value)

Description copied from interface: MutableTokenSequence

Sets the token at the specified position to the given value.

Specified by:

setValue in interface MutableTokenSequence

Parameters:

index - the position of the token in the array

value - the value to which to set the token. This value must be of an appropriate type for the array.

fillValue

public void fillValue(int start,
                      int length,
                      TokenValued value)

Description copied from interface: MutableTokenSequence

Sets the tokens in the specified subsequence to the given value.

Specified by:

fillValue in interface MutableTokenSequence

Parameters:

start - the starting index of the subsequence in the array

length - the length of the subsequence

value - the value to which to set the tokens. This value must be of an appropriate type for the array

setValues

public void setValues(int start,
                      TokenSequence values,
                      int offset,
                      int length)

Description copied from interface: MutableTokenSequence

Sets the tokens in the specified subsequence of the array to the corresponding values from a subsequence of the given source sequence.

Specified by:

setValues in interface MutableTokenSequence

Parameters:

start - the starting index of the subsequence in the array

values - the source sequence. This sequence must be of an appropriate type for the array.

offset - the starting index in the source sequence. Corresponding values will be taken relative to this position. That is, the value of the token at position offset in values will be assigned to the token at position start, and so on.

length - the number of tokens to copy

append

public void append(double value)

Description copied from interface: MutableDoubleTokenSequence

Appends the specified double to this sequence.

Specified by:

append in interface MutableDoubleTokenSequence

Parameters:

value - the value to append. If NaN, this is equivalent to appendNull().

append

public void append(double value,
                   int count)

Description copied from interface: MutableDoubleTokenSequence

Appends the specified double to this sequence multiple times.

Specified by:

append in interface MutableDoubleTokenSequence

Parameters:

value - the value to append. If NaN, this is equivalent to appendNull(count).

count - the number of copies to append.

newValueIterator

public DoubleValuedIterator newValueIterator()

Description copied from interface: TokenSequence

Creates an iterator over the non-null values of this sequence. The iterator will automatically be reset as modifications are made to the sequence.

Specified by:

newValueIterator in interface DoubleTokenSequence

Specified by:

newValueIterator in interface NumericTokenSequence

Specified by:

newValueIterator in interface ScalarTokenSequence

Specified by:

newValueIterator in interface TokenSequence

Returns:

an newly-created iterator over the non-null values of this sequence.