Package org.postgresql.util.internal
Class IntSet
java.lang.Object
org.postgresql.util.internal.IntSet
Read-optimized
Set
for storing Oid
values.
Note: the set does not support nullable values.-
Field Summary
Fields -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionboolean
add
(int value) Adds a single value to the set.void
addAll
(Collection<? extends Integer> values) Adds all the values to the set.void
clear()
Clears the contents of the set.boolean
contains
(int value) Checks if a given value belongs to the set.boolean
remove
(int value) Removes a value from the set.Returns a mutable snapshot of the values stored in the current set.
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Field Details
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MAX_OID_TO_STORE_IN_BITSET
private static final int MAX_OID_TO_STORE_IN_BITSETMaximal Oid that will bs stored inBitSet
. If Oid exceeds this value, then it will be stored inSet<Int>
only. In theory, Oids can be up to 32bit, so we want to limit per-connection memory utilization. AllowBitSet
to consume up to 8KiB (one for send and one for receive).- See Also:
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set
Contains values outside [0..MAX_OID_TO_STORE_IN_BITSET] range. This field is null if bitSet contains all the values. -
bitSet
Contains values in range of [0..MAX_OID_TO_STORE_IN_BITSET].
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Constructor Details
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IntSet
public IntSet()
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Method Details
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clear
public void clear()Clears the contents of the set. -
addAll
Adds all the values to the set.- Parameters:
values
- set of values to add
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add
public boolean add(int value) Adds a single value to the set.- Parameters:
value
- value to add- Returns:
- true if the set did not already contain the specified value
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remove
public boolean remove(int value) Removes a value from the set.- Parameters:
value
- value to remove- Returns:
- true if the element was
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contains
public boolean contains(int value) Checks if a given value belongs to the set.- Parameters:
value
- value to check- Returns:
- true if the value belons to the set
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toMutableSet
Returns a mutable snapshot of the values stored in the current set.- Returns:
- a mutable snapshot of the values stored in the current set
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