org.apache.iceberg.util

Class BinaryUtil

java.lang.Object

org.apache.iceberg.util.BinaryUtil

public class BinaryUtil
extends java.lang.Object

Method Summary

Modifier and Type	Method and Description
static java.nio.ByteBuffer	truncateBinary(java.nio.ByteBuffer input, int length) Truncates the input byte buffer to the given length.
static Literal<java.nio.ByteBuffer>	truncateBinaryMax(Literal<java.nio.ByteBuffer> input, int length) Returns a byte buffer whose length is lesser than or equal to truncateLength and is greater than the given input
static Literal<java.nio.ByteBuffer>	truncateBinaryMin(Literal<java.nio.ByteBuffer> input, int length) Returns a byte buffer whose length is lesser than or equal to truncateLength and is lower than the given input
static java.nio.ByteBuffer	truncateBinaryUnsafe(java.nio.ByteBuffer value, int width) Truncates the input byte buffer to the given length.

Methods inherited from class java.lang.Object

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

Method Detail

truncateBinary

public static java.nio.ByteBuffer truncateBinary(java.nio.ByteBuffer input,
                                                 int length)

Truncates the input byte buffer to the given length.

We allow for a length of zero so that rows with empty string can be evaluated. Partition specs still cannot be created with a length of zero due to a constraint when parsing column truncation specs in org.apache.iceberg.MetricsModes.

Parameters:

input - The ByteBuffer to be truncated

length - The non-negative length to truncate input to

truncateBinaryUnsafe

public static java.nio.ByteBuffer truncateBinaryUnsafe(java.nio.ByteBuffer value,
                                                       int width)

Truncates the input byte buffer to the given length.

Unlike truncateBinary(ByteBuffer, int), this skips copying the input data.

Parameters:

value - The ByteBuffer to be truncated

width - The non-negative length to truncate input to

truncateBinaryMin

public static Literal<java.nio.ByteBuffer> truncateBinaryMin(Literal<java.nio.ByteBuffer> input,
                                                             int length)

Returns a byte buffer whose length is lesser than or equal to truncateLength and is lower than the given input

truncateBinaryMax

public static Literal<java.nio.ByteBuffer> truncateBinaryMax(Literal<java.nio.ByteBuffer> input,
                                                             int length)

Returns a byte buffer whose length is lesser than or equal to truncateLength and is greater than the given input