public final class KeyRange extends GeneratedMessageV3 implements KeyRangeOrBuilder
KeyRange represents a range of rows in a table or index.
A range has a start key and an end key. These keys can be open or
closed, indicating if the range includes rows with that key.
Keys are represented by lists, where the ith value in the list
corresponds to the ith component of the table or index primary key.
Individual values are encoded as described
here.
For example, consider the following table definition:
CREATE TABLE UserEvents (
UserName STRING(MAX),
EventDate STRING(10)
) PRIMARY KEY(UserName, EventDate);
The following keys name rows in this table:
["Bob", "2014-09-23"]
["Alfred", "2015-06-12"]
Since the UserEvents table's PRIMARY KEY clause names two
columns, each UserEvents key has two elements; the first is the
UserName, and the second is the EventDate.
Key ranges with multiple components are interpreted
lexicographically by component using the table or index key's declared
sort order. For example, the following range returns all events for
user "Bob" that occurred in the year 2015:
"start_closed": ["Bob", "2015-01-01"]
"end_closed": ["Bob", "2015-12-31"]
Start and end keys can omit trailing key components. This affects the
inclusion and exclusion of rows that exactly match the provided key
components: if the key is closed, then rows that exactly match the
provided components are included; if the key is open, then rows
that exactly match are not included.
For example, the following range includes all events for "Bob" that
occurred during and after the year 2000:
"start_closed": ["Bob", "2000-01-01"]
"end_closed": ["Bob"]
The next example retrieves all events for "Bob":
"start_closed": ["Bob"]
"end_closed": ["Bob"]
To retrieve events before the year 2000:
"start_closed": ["Bob"]
"end_open": ["Bob", "2000-01-01"]
The following range includes all rows in the table:
"start_closed": []
"end_closed": []
This range returns all users whose UserName begins with any
character from A to C:
"start_closed": ["A"]
"end_open": ["D"]
This range returns all users whose UserName begins with B:
"start_closed": ["B"]
"end_open": ["C"]
Key ranges honor column sort order. For example, suppose a table is
defined as follows:
CREATE TABLE DescendingSortedTable {
Key INT64,
...
) PRIMARY KEY(Key DESC);
The following range retrieves all rows with key values between 1
and 100 inclusive:
"start_closed": ["100"]
"end_closed": ["1"]
Note that 100 is passed as the start, and 1 is passed as the end,
because Key is a descending column in the schema.
Protobuf type google.spanner.v1.KeyRange
Inherited Members
com.google.protobuf.GeneratedMessageV3.<ListT>makeMutableCopy(ListT)
com.google.protobuf.GeneratedMessageV3.<ListT>makeMutableCopy(ListT,int)
com.google.protobuf.GeneratedMessageV3.<T>emptyList(java.lang.Class<T>)
com.google.protobuf.GeneratedMessageV3.internalGetMapFieldReflection(int)
Static Fields
END_CLOSED_FIELD_NUMBER
public static final int END_CLOSED_FIELD_NUMBER
| Field Value |
| Type |
Description |
int |
|
END_OPEN_FIELD_NUMBER
public static final int END_OPEN_FIELD_NUMBER
| Field Value |
| Type |
Description |
int |
|
START_CLOSED_FIELD_NUMBER
public static final int START_CLOSED_FIELD_NUMBER
| Field Value |
| Type |
Description |
int |
|
START_OPEN_FIELD_NUMBER
public static final int START_OPEN_FIELD_NUMBER
| Field Value |
| Type |
Description |
int |
|
Static Methods
getDefaultInstance()
public static KeyRange getDefaultInstance()
getDescriptor()
public static final Descriptors.Descriptor getDescriptor()
newBuilder()
public static KeyRange.Builder newBuilder()
newBuilder(KeyRange prototype)
public static KeyRange.Builder newBuilder(KeyRange prototype)
| Parameter |
| Name |
Description |
prototype |
KeyRange
|
public static KeyRange parseDelimitedFrom(InputStream input)
public static KeyRange parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry)
parseFrom(byte[] data)
public static KeyRange parseFrom(byte[] data)
| Parameter |
| Name |
Description |
data |
byte[]
|
parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry)
public static KeyRange parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry)
parseFrom(ByteString data)
public static KeyRange parseFrom(ByteString data)
parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)
public static KeyRange parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)
public static KeyRange parseFrom(CodedInputStream input)
public static KeyRange parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)
public static KeyRange parseFrom(InputStream input)
public static KeyRange parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry)
parseFrom(ByteBuffer data)
public static KeyRange parseFrom(ByteBuffer data)
parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry)
public static KeyRange parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry)
parser()
public static Parser<KeyRange> parser()
Methods
equals(Object obj)
public boolean equals(Object obj)
| Parameter |
| Name |
Description |
obj |
Object
|
Overrides
getDefaultInstanceForType()
public KeyRange getDefaultInstanceForType()
getEndClosed()
public ListValue getEndClosed()
If the end is closed, then the range includes all rows whose
first len(end_closed) key columns exactly match end_closed.
.google.protobuf.ListValue end_closed = 3;
| Returns |
| Type |
Description |
ListValue |
The endClosed.
|
getEndClosedOrBuilder()
public ListValueOrBuilder getEndClosedOrBuilder()
If the end is closed, then the range includes all rows whose
first len(end_closed) key columns exactly match end_closed.
.google.protobuf.ListValue end_closed = 3;
getEndKeyTypeCase()
public KeyRange.EndKeyTypeCase getEndKeyTypeCase()
getEndOpen()
public ListValue getEndOpen()
If the end is open, then the range excludes rows whose first
len(end_open) key columns exactly match end_open.
.google.protobuf.ListValue end_open = 4;
| Returns |
| Type |
Description |
ListValue |
The endOpen.
|
getEndOpenOrBuilder()
public ListValueOrBuilder getEndOpenOrBuilder()
If the end is open, then the range excludes rows whose first
len(end_open) key columns exactly match end_open.
.google.protobuf.ListValue end_open = 4;
getParserForType()
public Parser<KeyRange> getParserForType()
Overrides
getSerializedSize()
public int getSerializedSize()
| Returns |
| Type |
Description |
int |
|
Overrides
getStartClosed()
public ListValue getStartClosed()
If the start is closed, then the range includes all rows whose
first len(start_closed) key columns exactly match start_closed.
.google.protobuf.ListValue start_closed = 1;
| Returns |
| Type |
Description |
ListValue |
The startClosed.
|
getStartClosedOrBuilder()
public ListValueOrBuilder getStartClosedOrBuilder()
If the start is closed, then the range includes all rows whose
first len(start_closed) key columns exactly match start_closed.
.google.protobuf.ListValue start_closed = 1;
getStartKeyTypeCase()
public KeyRange.StartKeyTypeCase getStartKeyTypeCase()
getStartOpen()
public ListValue getStartOpen()
If the start is open, then the range excludes rows whose first
len(start_open) key columns exactly match start_open.
.google.protobuf.ListValue start_open = 2;
| Returns |
| Type |
Description |
ListValue |
The startOpen.
|
getStartOpenOrBuilder()
public ListValueOrBuilder getStartOpenOrBuilder()
If the start is open, then the range excludes rows whose first
len(start_open) key columns exactly match start_open.
.google.protobuf.ListValue start_open = 2;
hasEndClosed()
public boolean hasEndClosed()
If the end is closed, then the range includes all rows whose
first len(end_closed) key columns exactly match end_closed.
.google.protobuf.ListValue end_closed = 3;
| Returns |
| Type |
Description |
boolean |
Whether the endClosed field is set.
|
hasEndOpen()
public boolean hasEndOpen()
If the end is open, then the range excludes rows whose first
len(end_open) key columns exactly match end_open.
.google.protobuf.ListValue end_open = 4;
| Returns |
| Type |
Description |
boolean |
Whether the endOpen field is set.
|
hasStartClosed()
public boolean hasStartClosed()
If the start is closed, then the range includes all rows whose
first len(start_closed) key columns exactly match start_closed.
.google.protobuf.ListValue start_closed = 1;
| Returns |
| Type |
Description |
boolean |
Whether the startClosed field is set.
|
hasStartOpen()
public boolean hasStartOpen()
If the start is open, then the range excludes rows whose first
len(start_open) key columns exactly match start_open.
.google.protobuf.ListValue start_open = 2;
| Returns |
| Type |
Description |
boolean |
Whether the startOpen field is set.
|
hashCode()
| Returns |
| Type |
Description |
int |
|
Overrides
internalGetFieldAccessorTable()
protected GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable()
Overrides
isInitialized()
public final boolean isInitialized()
Overrides
newBuilderForType()
public KeyRange.Builder newBuilderForType()
newBuilderForType(GeneratedMessageV3.BuilderParent parent)
protected KeyRange.Builder newBuilderForType(GeneratedMessageV3.BuilderParent parent)
Overrides
newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)
protected Object newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)
| Returns |
| Type |
Description |
Object |
|
Overrides
toBuilder()
public KeyRange.Builder toBuilder()
writeTo(CodedOutputStream output)
public void writeTo(CodedOutputStream output)
Overrides
