com.pervasive.datarush.operators.group

Class WriteableStorage

java.lang.Object

com.pervasive.datarush.operators.group.WriteableStorage

public final class WriteableStorage
extends Object

Storage class by which a custom aggregator can storage its internals. An aggregator's internals correspond element-by-element with the internalTypes that the aggregator declared. Needed only for writing custom Aggregator; consumers of the API should not need to use this class.

Constructor Summary

Constructors

Constructor and Description
WriteableStorage(ScalarSettable[] internals) Create a new writeable storage.

Method Summary

Methods

Modifier and Type	Method and Description
ScalarSettable	getScalarSettable(int offset) Gets a mutable handle to the internal element at the given offset.
void	setBinaryRef(int offset, byte[] value) Sets the value of the internal element at the given offset.
void	setBoolean(int offset, boolean value) Sets the value of the internal element at the given offset.
void	setChar(int offset, char value) Sets the value of the internal element at the given offset.
void	setDateEpochDays(int offset, long value) Sets the value of the internal element at the given offset.
void	setDouble(int offset, double value) Sets the value of the internal element at the given offset.
void	setFloat(int offset, float value) Sets the value of the internal element at the given offset.
void	setInt(int offset, int value) Sets the value of the internal element at the given offset.
void	setLong(int offset, long value) Sets the value of the internal element at the given offset.
void	setNumeric(int offset, BigDecimal value) Sets the value of the internal element at the given offset.
void	setObject(int offset, Object value) Sets the value of the internal element at the given offset.
void	setString(int offset, String value) Sets the value of the internal element at the given offset.
void	setTimeDayMillis(int offset, int value) Sets the value of the internal element at the given offset.
void	setTimestamp(int offset, long seconds, int nanos, int offsetSeconds) Sets the value of the internal element at the given offset.

Methods inherited from class java.lang.Object

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

Constructor Detail

WriteableStorage

public WriteableStorage(ScalarSettable[] internals)

Create a new writeable storage.

Parameters:

internals - the array of internals.

Method Detail

setObject

public void setObject(int offset,
             Object value)

Sets the value of the internal element at the given offset.

Parameters:

offset - the offset of the internal element.

value - the new value of the internal element at the given offset.

Throws:

ArrayIndexOutOfBoundsException - if the given offset is larger than the number of internalTypes.

ClassCastException - if the internalType at the given offset is not of type ObjectSettable

setDouble

public void setDouble(int offset,
             double value)

Sets the value of the internal element at the given offset.

Parameters:

offset - the offset of the internal element.

value - the new value of the internal element at the given offset.

Throws:

ArrayIndexOutOfBoundsException - if the given offset is larger than the number of internalTypes.

ClassCastException - if the internalType at the given offset is not of type DoubleSettable

setNumeric

public void setNumeric(int offset,
              BigDecimal value)

Sets the value of the internal element at the given offset.

Parameters:

offset - the offset of the internal element.

value - the new value of the internal element at the given offset.

Throws:

ArrayIndexOutOfBoundsException - if the given offset is larger than the number of internalTypes.

ClassCastException - if the internalType at the given offset is not of type NumericSettable

setLong

public void setLong(int offset,
           long value)

Sets the value of the internal element at the given offset.

Parameters:

offset - the offset of the internal element.

value - the new value of the internal element at the given offset.

Throws:

ArrayIndexOutOfBoundsException - if the given offset is larger than the number of internalTypes.

ClassCastException - if the internalType at the given offset is not of type LongSettable

getScalarSettable

public ScalarSettable getScalarSettable(int offset)

Gets a mutable handle to the internal element at the given offset.

Parameters:

offset - the offset of the internal element.

Returns:

a handle that can be used to mutate the internal value at the given offset

Throws:

ArrayIndexOutOfBoundsException - if the given offset is larger than the number of internalTypes.

setBinaryRef

public void setBinaryRef(int offset,
                byte[] value)

Sets the value of the internal element at the given offset.

Parameters:

offset - the offset of the internal element.

value - the new value of the internal element at the given offset.

Throws:

ArrayIndexOutOfBoundsException - if the given offset is larger than the number of internalTypes.

ClassCastException - if the internalType at the given offset is not of type BinarySettable

setBoolean

public void setBoolean(int offset,
              boolean value)

Sets the value of the internal element at the given offset.

Parameters:

offset - the offset of the internal element.

value - the new value of the internal element at the given offset.

Throws:

ArrayIndexOutOfBoundsException - if the given offset is larger than the number of internalTypes.

ClassCastException - if the internalType at the given offset is not of type BooleanSettable

setChar

public void setChar(int offset,
           char value)

Sets the value of the internal element at the given offset.

Parameters:

offset - the offset of the internal element.

value - the new value of the internal element at the given offset.

Throws:

ArrayIndexOutOfBoundsException - if the given offset is larger than the number of internalTypes.

ClassCastException - if the internalType at the given offset is not of type CharSettable

setDateEpochDays

public void setDateEpochDays(int offset,
                    long value)

Sets the value of the internal element at the given offset.

Parameters:

offset - the offset of the internal element.

value - the new value of the internal element at the given offset.

Throws:

ArrayIndexOutOfBoundsException - if the given offset is larger than the number of internalTypes.

ClassCastException - if the internalType at the given offset is not of type DateSettable

setInt

public void setInt(int offset,
          int value)

Sets the value of the internal element at the given offset.

Parameters:

offset - the offset of the internal element.

value - the new value of the internal element at the given offset.

Throws:

ArrayIndexOutOfBoundsException - if the given offset is larger than the number of internalTypes.

ClassCastException - if the internalType at the given offset is not of type IntSettable

setString

public void setString(int offset,
             String value)

Sets the value of the internal element at the given offset.

Parameters:

offset - the offset of the internal element.

value - the new value of the internal element at the given offset.

Throws:

ArrayIndexOutOfBoundsException - if the given offset is larger than the number of internalTypes.

ClassCastException - if the internalType at the given offset is not of type StringSettable

setTimeDayMillis

public void setTimeDayMillis(int offset,
                    int value)

Sets the value of the internal element at the given offset.

Parameters:

offset - the offset of the internal element.

value - the new value of the internal element at the given offset.

Throws:

ArrayIndexOutOfBoundsException - if the given offset is larger than the number of internalTypes.

ClassCastException - if the internalType at the given offset is not of type TimeSettable

setTimestamp

public void setTimestamp(int offset,
                long seconds,
                int nanos,
                int offsetSeconds)

Sets the value of the internal element at the given offset.

Parameters:

offset - the offset of the internal element.

seconds - number of seconds since Java epoch

nanos - fractional portion of epoch time in nanoseconds

offsetSeconds - time zone and daylight saving time offset, in seconds

Throws:

ArrayIndexOutOfBoundsException - if the given offset is larger than the number of internalTypes.

ClassCastException - if the internalType at the given offset is not of type TimestampSettable

setFloat

public void setFloat(int offset,
            float value)

Sets the value of the internal element at the given offset.

Parameters:

offset - the offset of the internal element.

value - the new value of the internal element at the given offset.

Throws:

ArrayIndexOutOfBoundsException - if the given offset is larger than the number of internalTypes.

ClassCastException - if the internalType at the given offset is not of type FloatSettable