public class AddressDivisionGrouping extends java.lang.Object implements AddressDivisionSeries, java.lang.Comparable<AddressDivisionGrouping>
AddressDivisionGrouping objects are immutable. This also makes them thread-safe.
Modifier and Type | Class and Description |
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static class |
AddressDivisionGrouping.StringOptions
Represents a clear way to create a specific type of string.
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Constructor and Description |
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AddressDivisionGrouping(AddressDivision[] divisions) |
AddressDivisionGrouping(AddressDivision[] divisions,
boolean checkDivisions) |
Modifier and Type | Method and Description |
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int |
compareTo(AddressDivisionGrouping other) |
boolean |
containsPrefixBlock(int prefixLength)
Returns whether the values of this division grouping contain the prefix block for the given prefix length
|
boolean |
containsSinglePrefixBlock(int prefixLength)
Returns whether the values of this division grouping match the prefix block for the given prefix length
|
boolean |
equals(java.lang.Object o) |
int |
getBitCount() |
byte[] |
getBytes()
Gets the bytes for the lowest address in the range represented by this address.
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byte[] |
getBytes(byte[] bytes)
Gets the value for the lowest address in the range represented by this address division.
|
java.math.BigInteger |
getCount()
gets the count of addresses that this address may represent
If this address division grouping is not a subnet block of multiple addresses or has no range of values, then there is only one such address.
|
AddressDivision |
getDivision(int index) |
int |
getDivisionCount() |
java.lang.String[] |
getDivisionStrings()
Get standard-format strings for each of the divisions in the series.
|
int |
getMinPrefixLengthForBlock()
Returns the smallest prefix length possible such that this address division grouping includes the block of addresses for that prefix.
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java.math.BigInteger |
getPrefixCount()
If this has a prefix length, the count of the range of values in the prefix.
|
java.lang.Integer |
getPrefixLength()
The bit-length of the portion of the address that is not specific to an individual address but common amongst a group of addresses.
|
java.lang.Integer |
getPrefixLengthForSingleBlock()
Returns a prefix length for which the range of this segment grouping matches the the block of addresses for that prefix.
|
byte[] |
getUpperBytes()
Gets the bytes for the highest address in the range represented by this address.
|
byte[] |
getUpperBytes(byte[] bytes)
Copies the bytes of the largest address item represented by this address item into the supplied array,
and returns that array.
|
java.math.BigInteger |
getUpperValue() |
java.math.BigInteger |
getValue() |
int |
hashCode() |
boolean |
includesMax() |
boolean |
includesZero() |
boolean |
isFullRange() |
boolean |
isMax() |
int |
isMore(AddressDivisionSeries other)
Use this method to compare the counts of two address series.
|
boolean |
isMultiple()
Whether this represents multiple potential values (eg a prefixed address or a segment representing a range of values)
|
boolean |
isPrefixBlock()
Returns whether this address segment series represents a block of addresses associated with its prefix length.
|
boolean |
isPrefixed()
Whether there exists a prefix.
|
boolean |
isSinglePrefixBlock()
Returns whether the range of values matches a single subnet block for the prefix length
|
boolean |
isZero() |
java.lang.String |
toString() |
public AddressDivisionGrouping(AddressDivision[] divisions)
public AddressDivisionGrouping(AddressDivision[] divisions, boolean checkDivisions)
public AddressDivision getDivision(int index)
getDivision
in interface AddressDivisionSeries
getDivision
in interface AddressStringDivisionSeries
public int getDivisionCount()
getDivisionCount
in interface AddressStringDivisionSeries
public int getBitCount()
getBitCount
in interface AddressItem
public byte[] getBytes()
Since bytes are signed values while addresses are unsigned, values greater than 127 are represented as the (negative) two's complement value of the actual value. You can get the unsigned integer value i from byte b using i = 0xff & b.
getBytes
in interface AddressItem
public byte[] getBytes(byte[] bytes)
If the value fits in the specified array, the same array is returned with the value. Otherwise, a new array is allocated and returned with the value.
You can use getBitCount()
to determine the required array length for the bytes.
Since bytes are signed values while addresses are unsigned, values greater than 127 are represented as the (negative) two's complement value of the actual value. You can get the unsigned integer value i from byte b using i = 0xff & b.
getBytes
in interface AddressItem
public byte[] getUpperBytes()
getUpperBytes
in interface AddressItem
public byte[] getUpperBytes(byte[] bytes)
AddressItem
getUpperBytes
in interface AddressItem
public java.math.BigInteger getValue()
getValue
in interface AddressDivisionSeries
public java.math.BigInteger getUpperValue()
getUpperValue
in interface AddressDivisionSeries
public boolean isPrefixed()
AddressDivisionSeries
isPrefixed
in interface AddressDivisionSeries
public java.lang.Integer getPrefixLength()
AddressDivisionSeries
Typically this is the largest number of bits in the upper-most portion of the section for which the remaining bits assume all possible values.
For IP addresses, this must be explicitly defined when the address is created. For example, 1.2.0.0/16 has a prefix length of 16, while 1.2.*.* has no prefix length, even though they both represent the same set of addresses and are considered equal. Prefixes can be considered variable for any given IP addresses and can depend on the routing table.
The methods AddressDivisionSeries.getMinPrefixLengthForBlock()
and AddressDivisionSeries.getPrefixLengthForSingleBlock()
can help you to obtain or define a prefix length if one does not exist already.
1.2.0.0/16 and 1.2.*.* both the same equivalent and minimum prefix length of 16.
For MAC addresses, the prefix is initially defined by the range, so 1:2:3:*:*:* has a prefix length of 24 by definition. Addresses derived from the original may retain the original prefix length regardless of their range.
getPrefixLength
in interface AddressDivisionSeries
public int getMinPrefixLengthForBlock()
getMinPrefixLengthForBlock
in interface AddressDivisionSeries
public java.lang.Integer getPrefixLengthForSingleBlock()
getPrefixLengthForSingleBlock
in interface AddressDivisionSeries
public java.math.BigInteger getCount()
getCount
in interface AddressItem
public java.math.BigInteger getPrefixCount()
AddressDivisionSeries
If this has no prefix length, returns the same value as AddressItem.getCount()
getPrefixCount
in interface AddressDivisionSeries
public int isMore(AddressDivisionSeries other)
AddressDivisionSeries
isMore
in interface AddressDivisionSeries
public boolean isMultiple()
AddressItem
isMultiple
in interface AddressItem
public boolean isSinglePrefixBlock()
AddressDivisionSeries
isSinglePrefixBlock
in interface AddressDivisionSeries
public boolean isPrefixBlock()
AddressDivisionSeries
This returns false if it has no prefix length or if it is a range of addresses that does not include the entire subnet block for the prefix length.
If AddressNetwork.getPrefixConfiguration()
is set to consider all prefixes as subnets, this returns true for any series with a prefix length.
isPrefixBlock
in interface AddressDivisionSeries
public boolean containsPrefixBlock(int prefixLength)
containsPrefixBlock
in interface AddressDivisionSeries
prefixLength
- public boolean containsSinglePrefixBlock(int prefixLength)
containsSinglePrefixBlock
in interface AddressDivisionSeries
prefixLength
- public int hashCode()
hashCode
in class java.lang.Object
public boolean equals(java.lang.Object o)
equals
in class java.lang.Object
public int compareTo(AddressDivisionGrouping other)
compareTo
in interface java.lang.Comparable<AddressDivisionGrouping>
public java.lang.String toString()
toString
in class java.lang.Object
public java.lang.String[] getDivisionStrings()
AddressDivisionSeries
getDivisionStrings
in interface AddressDivisionSeries
public boolean isZero()
isZero
in interface AddressItem
public boolean includesZero()
includesZero
in interface AddressItem
public boolean isMax()
isMax
in interface AddressItem
public boolean includesMax()
includesMax
in interface AddressItem
public boolean isFullRange()
isFullRange
in interface AddressItem