aerospike/exp

This module defines a filter expression that is a mechanism for additional filtering.

The resultset of a primary index (PI) query (scan) or secondary index (SI) query operation can be filtered through the QueryPolicy and ScanPolicy classes. It can also filter single key operations and batch operations through the filterExpression field of their policy class.

Filter Expressions replace PredicateExpression filtering, which was deprecated in server 5.2 and removed in server 6.0.

Description:

  • This module defines a filter expression that is a mechanism for additional filtering.

    The resultset of a primary index (PI) query (scan) or secondary index (SI) query operation can be filtered through the QueryPolicy and ScanPolicy classes. It can also filter single key operations and batch operations through the filterExpression field of their policy class.

    Filter Expressions replace PredicateExpression filtering, which was deprecated in server 5.2 and removed in server 6.0.

Source:
See:
Examples

Expressions using the operate API

const Aerospike = require('aerospike')
const op = Aerospike.operations
const exp = Aerospike.exp
const key = new Aerospike.Key('test', 'demo', 'mykey1')
const tempBin = 'ExpVar' // this bin is to hold expression read operation output

// INSERT HOSTNAME AND PORT NUMBER OF AEROSPIKE SERVER NODE HERE!
const config = {
  hosts: '192.168.33.10:3000',
  // Timeouts disabled, latency dependent on server location. Configure as needed.
  policies: {
    operate : new Aerospike.OperatePolicy({socketTimeout : 0, totalTimeout : 0}),
    write : new Aerospike.WritePolicy({socketTimeout : 0, totalTimeout : 0})
  }
}

var ops = [
  op.append('a', 'xyz'),
  op.incr('b', 10),
  exp.operations.read(tempBin,
          exp.add(exp.binInt('b'), exp.binInt('b')),
         0),
  op.read('a'),
  op.read('b')
]

Aerospike.connect(config, (error, client) => {
  if (error) throw error
  client.put(key, { a: 'abc', b: 42 }, (error) => {
    if (error) throw error
    client.operate(key, ops, (error, record) => {
      if (error) throw error
      console.log(record.bins) // => { a: 'abcxyz', b: 52, ExpVar: 104 }
      client.close()
    })
  })
})

Expressions using the query API

const Aerospike = require('aerospike')
const op = Aerospike.operations
const exp = Aerospike.exp
const key = new Aerospike.Key('test', 'demo', 'mykey1')
const tempBin = 'ExpVar' // this bin is to hold expression read operation output

// INSERT HOSTNAME AND PORT NUMBER OF AEROSPIKE SERVER NODE HERE!
const config = {
  hosts: '192.168.33.10:3000',
  // Timeouts disabled, latency dependent on server location. Configure as needed.
  policies: {
    query : new Aerospike.QueryPolicy({socketTimeout : 0, totalTimeout : 0}),
    write : new Aerospike.WritePolicy({socketTimeout : 0, totalTimeout : 0, exists : Aerospike.policy.exists.REPLACE})
  }
}

Aerospike.connect(config, (error, client) => {
  if (error) throw error
  client.put(key, { a: 'abc', b: 42 }, (error) => {
    if (error) throw error
    var query = client.query('test', 'demo')
    const queryPolicy = { filterExpression:  exp.eq(exp.binInt('b'), exp.int(42))}
    query.nobins = false
    const stream = query.foreach(queryPolicy)
    stream.on('error', (error) => {
      console.error(error)
      throw error
    })
    stream.on('data', (record) => {
      console.info(record.bins) // => { a: 'abc', b: 42}
    })
    stream.on('end', () => {
      client.close()
    })
  })
})

Members

(static) bit

Blob expressions.

Description:
Source:

The aerospike/exp/bit module defines functions for expressions on the Blob datatype

(static, readonly) expReadFlags :number

Description:

  • Expression read bit flags. Use BITWISE OR to combine flags.

Source:
Properties:
Name Type Description
DEFAULT number

Default.
EVAL_NO_FAIL number

Ignore failures caused by the expression resolving to unknown or a non-bin type.

Expression read bit flags. Use BITWISE OR to combine flags.

Type:
  • number

(static, readonly) expWriteFlags :number

Description:

  • Expression write bit flags. Use BITWISE OR to combine flags.

Source:
Properties:
Name Type Description
DEFAULT number

Default.
CREATE_ONLY number

If bin does not exist, a new bin will be created.
UPDATE_ONLY number

If bin exists, the bin will be overwritten.
ALLOW_DELETE number

If expression results in nil value, then delete the bin.
POLICY_NO_FAIL number

Do not raise error if operation is denied.
EVAL_NO_FAIL number

Ignore failures caused by the expression resolving to unknown or a non-bin type.

Expression write bit flags. Use BITWISE OR to combine flags.

Type:
  • number

(static) hll

HyperLogLog expressions.

Description:

  • The aerospike/exp/hll module defines functions for expressions on the HyperLogLog datatype

Source:

The aerospike/exp/hll module defines functions for expressions on the HyperLogLog datatype

(static) lists

List expressions.

Description:
Source:

The aerospike/exp/lists module defines functions for expressions on the List datatype.

(static) maps

Map expressions.

Description:
Source:

The aerospike/exp/maps module defines functions for expressions on the Map datatype.

Methods

(static) abs() → {AerospikeExp}

Description:

  • Create operator that returns absolute value of a number. All arguments must resolve to integer or float. Requires server version 5.6.0+.

Source:
Returns:

number value

Type
AerospikeExp

(static) add() → {AerospikeExp}

Description:

  • Create "add" (+) operator that applies to a variable number of expressions. Return the sum of all arguments. All arguments must be the same type (integer or float). Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
... Array.<number>

Variable number of integer or float expressions.
Returns:

integer or float value

Type
AerospikeExp

(static) and() → {AerospikeExp}

Description:

  • Create "and" (&&) operator that applies to a variable number of expressions.

Source:
Parameters:
Name Type Description
... AerospikeExp

Variable number of boolean expressions.
Returns:
  • boolean value
Type
AerospikeExp

(static) binBlob(binName) → {AerospikeExp}

Description:

  • Create expression that returns a bin as a blob. Returns 'unknown' if the bin is not an blob.

Source:
Parameters:
Name Type Description
binName string

Bin name.
Returns:

blob bin

Type
AerospikeExp

(static) binBool(binName) → {AerospikeExp}

Description:

  • Create expression that returns a bin as a boolean value. Returns 'unknown' if the bin is not a boolean.

Source:
Parameters:
Name Type Description
binName string

Bin name.
Returns:

boolean bin

Type
AerospikeExp

(static) binExists(binName) → {boolean}

Description:

  • Create expression that returns if bin of specified name exists.

Source:
Parameters:
Name Type Description
binName string

Bin name.
Returns:
  • value True if the bin exists, false otherwise.
Type
boolean

(static) binFloat(binName) → {AerospikeExp}

Description:

  • Create expression that returns a bin as a float. Returns 'unknown' if the bin is not an float.

Source:
Parameters:
Name Type Description
binName string

Bin name.
Returns:

float bin

Type
AerospikeExp

(static) binGeo(binName) → {AerospikeExp}

Description:

  • Create expression that returns a bin as a geojson. Returns 'unknown' if the bin is not geojson.

Source:
Parameters:
Name Type Description
binName string

Bin name.
Returns:

geojson bin

Type
AerospikeExp

(static) binHll(binName) → {AerospikeExp}

Description:

  • Create expression that returns a bin as a HyperLogLog (hll). Returns 'unknown' if the bin is not a HyperLogLog (hll).

Source:
Parameters:
Name Type Description
binName string

Bin name.
Returns:

hll bin

Type
AerospikeExp

(static) binInt(binName) → {AerospikeExp}

Description:

  • Create expression that returns a bin as a signed integer. Returns 'unknown' if the bin is not an integer.

Source:
Parameters:
Name Type Description
binName string

Bin name.
Returns:

integer bin

Type
AerospikeExp

(static) binList(binName) → {AerospikeExp}

Description:

  • Create expression that returns a bin as a list. Returns 'unknown' if the bin is not an list.

Source:
Parameters:
Name Type Description
binName string

Bin name.
Returns:

list bin

Type
AerospikeExp

(static) binMap(binName) → {AerospikeExp}

Description:

  • Create expression that returns a bin as a map. Returns 'unknown' if the bin is not an map.

Source:
Parameters:
Name Type Description
binName string

Bin name.
Returns:

map bin

Type
AerospikeExp

(static) binStr(binName) → {AerospikeExp}

Description:

  • Create expression that returns a bin as a string. Returns 'unknown' if the bin is not an string.

Source:
Parameters:
Name Type Description
binName string

Bin name.
Returns:

string bin

Type
AerospikeExp

(static) bool(value) → {AerospikeExp}

Description:

  • Create boolean value.

Source:
Parameters:
Name Type Description
value boolean

boolean value.
Returns:
Type
AerospikeExp

(static) bytes(value, size) → {AerospikeExp}

Description:

  • Create byte array value. *

Source:
Parameters:
Name Type Description
value Array.<string>

byte array value.
size number

number of bytes.
Returns:
Type
AerospikeExp

(static) ceil(num) → {AerospikeExp}

Description:

  • Create expression that rounds a floating point number up to the closest integer value. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
num number

Floating point value to round up.
Returns:

integer-value

Type
AerospikeExp

(static) cmpGeo(left, right) → {AerospikeExp}

Description:

  • Create a point within region or region contains point expression.

Source:
Parameters:
Name Type Description
left number

left expression in comparison.
right number

right expression in comparison.
Returns:
  • boolean value
Type
AerospikeExp

(static) cmpRegex(options, regex, cmpStr) → {AerospikeExp}

Description:

  • Create expression that performs a regex match on a string bin or value expression.

Source:
Parameters:
Name Type Description
options number

POSIX regex flags defined in regex.h.
regex string

POSIX regex string.
cmpStr AerospikeExp

String expression to compare against.
Returns:
  • boolean value
Type
AerospikeExp

(static) cond() → {AerospikeExp}

Description:

  • Conditionally select an expression from a variable number of expression pairs followed by default expression action. Requires server version 5.6.0+.

Source:
Parameters:
Type Description
AerospikeExp
Returns:

first action expression where bool expression is true or action-default.

Type
AerospikeExp

(static) def(varName, expr) → {AerospikeExp}

Description:

  • Assign variable to an expression that can be accessed later. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
varName string

Variable name.
expr AerospikeExp

The variable is set to the result of expr.
Returns:

A variable name expression pair.

Type
AerospikeExp

(static) deviceSize() → {AerospikeExp}

Description:

  • Create expression that returns record size on disk. If server storage-engine is memory, then zero is returned. This expression usually evaluates quickly because record meta data is cached in memory. Requires server version between 5.3.0 inclusive and 7.0 exclusive. Use #recordSize for server version 7.0+.

Source:
Returns:

integer value Uncompressed storage size of the record.

Type
AerospikeExp

(static) digestModulo(mod) → {AerospikeExp}

Description:

  • Create expression that returns record digest modulo as integer.

Source:
Parameters:
Name Type Description
mod number

Divisor used to divide the digest to get a remainder.
Returns:

integer value Value in range 0 and mod (exclusive)..

Type
AerospikeExp

(static) div() → {AerospikeExp}

Description:

  • Create "divide" (/) operator that applies to a variable number of expressions. If there is only one argument, returns the reciprocal for that argument. Otherwise, return the first argument divided by the product of the rest. All arguments must resolve to the same type (integer or float). Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
... Array.<number>

Variable number of integer or float expressions.
Returns:

integer or float value

Type
AerospikeExp

(static) eq(left, right) → {AerospikeExp}

Description:

  • Create equals (==) expression.

Source:
Parameters:
Name Type Description
left number

left expression in comparison.
right number

right expression in comparison.
Returns:
  • boolean value
Type
AerospikeExp

(static) exclusive() → {AerospikeExp}

Description:

  • Create expression that returns true if only one of the expressions are true. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
... AerospikeExp

Variable number of boolean expressions.
Returns:
  • boolean value
Type
AerospikeExp

(static) float(value) → {AerospikeExp}

Description:

  • Create 64 bit floating point value.

Source:
Parameters:
Name Type Description
value number

floating point value.
Returns:
Type
AerospikeExp

(static) floor(num) → {AerospikeExp}

Description:

  • Create expression that rounds a floating point number down to the closest integer value. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
num number

Floating point value to round down.
Returns:

float-value

Type
AerospikeExp

(static) ge(left, right) → {AerospikeExp}

Description:

  • Create a greater than or equals (>=) expression.

Source:
Parameters:
Name Type Description
left number

left expression in comparison.
right number

right expression in comparison.
Returns:
  • boolean value
Type
AerospikeExp

(static) geo(value) → {AerospikeExp}

Description:

  • Create geojson value.

Source:
Parameters:
Name Type Description
value Object

geojson value.
Returns:
Type
AerospikeExp

(static) gt(left, right) → {AerospikeExp}

Description:

  • Create a greater than (>) expression.

Source:
Parameters:
Name Type Description
left number

left expression in comparison.
right number

right expression in comparison.
Returns:
  • boolean value
Type
AerospikeExp

(static) inf() → {AerospikeExp}

Description:

  • Create 'inf' value.

Source:
Returns:
Type
AerospikeExp

(static) int(number) → {AerospikeExp}

Description:

  • Create 64 bit signed integer value.

Source:
Parameters:
Name Type Description
number number

value integer value.
Returns:
Type
AerospikeExp

(static) intAnd() → {AerospikeExp}

Description:

  • Create integer "and" (&) operator that is applied to two or more integers. All arguments must resolve to integers. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
... AerospikeExp

Variable number of integer expressions.
Returns:

integer value

Type
AerospikeExp

(static) intArshift(value, shift) → {AerospikeExp}

Description:

  • Create integer "arithmetic right shift" (>>) operator. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
value AerospikeExp

Integer expression.
shift number

Number of bits to shift by.
Returns:

integer value

Type
AerospikeExp

(static) intCount() → {AerospikeExp}

Description:

  • Create expression that returns count of integer bits that are set to 1. Requires server version 5.6.0+.

Source:
Parameters:
Type Description
AerospikeExp
Returns:

integer value

Type
AerospikeExp

(static) intLscan() → {AerospikeExp}

Description:

  • Create expression that scans integer bits from left (most significant bit) to right (least significant bit), looking for a search bit value. When the search value is found, the index of that bit (where the most significant bit is index 0) is returned. If "search" is true, the scan will search for the bit value 1. If "search" is false it will search for bit value 0. Requires server version 5.6.0+.

Source:
Parameters:
Type Description
AerospikeExp
Returns:

integer value

Type
AerospikeExp

(static) intLshift(value, shift) → {AerospikeExp}

Description:

  • Create integer "left shift" (<<) operator. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
value AerospikeExp

Integer expression.
shift number

Number of bits to shift by.
Returns:

integer value

Type
AerospikeExp

(static) intNot(expr) → {AerospikeExp}

Description:

  • Create integer "not" (~) operator. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
expr AerospikeExp

Integer expression.
Returns:

integer value

Type
AerospikeExp

(static) intOr() → {AerospikeExp}

Description:

  • Create integer "or" (|) operator that is applied to two or more integers. All arguments must resolve to integers. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
... AerospikeExp

Variable number of integer expressions.
Returns:

integer value

Type
AerospikeExp

(static) intRscan() → {AerospikeExp}

Description:

  • Create expression that scans integer bits from right (least significant bit) to left (most significant bit), looking for a search bit value. When the search value is found, the index of that bit (where the most significant bit is index 0) is returned. If "search" is true, the scan will search for the bit value 1. If "search" is false it will search for bit value 0. Requires server version 5.6.0+.

Source:
Parameters:
Type Description
AerospikeExp
Returns:

integer value

Type
AerospikeExp

(static) intRshift(value, shift) → {AerospikeExp}

Description:

  • Create integer "logical right shift" (>>>) operator. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
value AerospikeExp

Integer expression.
shift number

Number of bits to shift by.
Returns:

integer value

Type
AerospikeExp

(static) intXor() → {AerospikeExp}

Description:

  • Create integer "xor" (^) operator that is applied to two or more integers. All arguments must resolve to integers. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
... AerospikeExp

Variable number of integer expressions.
Returns:

integer value

Type
AerospikeExp

(static) isTombstone() → {AerospikeExp}

Description:

  • Create expression that returns if record has been deleted and is still in tombstone state. This expression usually evaluates quickly because record meta data is cached in memory.

Source:
Returns:
  • value True if the record is a tombstone, false otherwise.
Type
AerospikeExp

(static) keyBlob(blob) → {AerospikeExp}

Description:

  • Create expression that returns the key as an blob. Returns 'unknown' if the key is not an blob.

Source:
Parameters:
Name Type Description
blob Object

Blob value of the key if the key is a blob.
Returns:
Type
AerospikeExp

(static) keyExist() → {AerospikeExp}

Description:

  • Create expression that returns if the primary key is stored in the record meta data as a boolean expression. This would occur when "policy write key" is SEND on record write.

Source:
Parameters:
Type Description
boolean

value True if the record has a stored key, false otherwise.
Returns:
Type
AerospikeExp

(static) keyInt(integer) → {AerospikeExp}

Description:

  • Create expression that returns the key as an integer. Returns 'unknown' if the key is not an integer.

Source:
Parameters:
Name Type Description
integer number

value Integer value of the key if the key is an integer.
Returns:
Type
AerospikeExp

(static) keyStr(string) → {AerospikeExp}

Description:

  • Create expression that returns the key as an string. Returns 'unknown' if the key is not a string.

Source:
Parameters:
Name Type Description
string string

value String value of the key if the key is a string.
Returns:
Type
AerospikeExp

(static) lastUpdate() → {AerospikeExp}

Description:

  • Create expression that returns record last update time expressed as 64 bit integer nanoseconds since 1970-01-01 epoch.

Source:
Returns:

integer value When the record was last updated.

Type
AerospikeExp

(static) le(left, right) → {AerospikeExp}

Description:

  • Create a less than or equals (<=) expression.

Source:
Parameters:
Name Type Description
left number

left expression in comparison.
right number

right expression in comparison.
Returns:
  • boolean value
Type
AerospikeExp

(static) let() → {AerospikeExp}

Description:

  • Define variables and expressions in scope. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
... AerospikeExp

Variable number of expression def followed by a scoped expression.
Returns:

result of scoped expression.

Type
AerospikeExp

(static) list(value) → {AerospikeExp}

Description:

  • Create list value.

Source:
Parameters:
Name Type Description
value array

list value
Returns:
Type
AerospikeExp

(static) log(num, base) → {AerospikeExp}

Description:

  • Create "log" operator for logarithm of "num" with base "base". All arguments must resolve to floats. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
num number

Number.
base number

Base value.
Returns:

float value

Type
AerospikeExp

(static) lt(left, right) → {AerospikeExp}

Description:

  • Create a less than (<) expression.

Source:
Parameters:
Name Type Description
left number

left expression in comparison.
right number

right expression in comparison.
Returns:
  • boolean value
Type
AerospikeExp

(static) map(value) → {AerospikeExp}

Description:

  • Create map value.

Source:
Parameters:
Name Type Description
value array

map value
Returns:
Type
AerospikeExp

(static) max() → {AerospikeExp}

Description:

  • Create expression that returns the maximum value in a variable number of expressions. All arguments must be the same type (integer or float). Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
... AerospikeExp

Variable number of integer or float expressions.
Returns:

integer or float value

Type
AerospikeExp

(static) memorySize() → {AerospikeExp}

Description:

  • Create expression that returns record size in memory when either the storage-engine is memory or data-in-memory is true, otherwise returns 0. This expression usually evaluates quickly because record meta data is cached in memory. Requires server version between 5.3.0 inclusive and 7.0 exclusive. Use #recordSize for server version 7.0+.

Source:
Returns:

integer value memory size of the record.

Type
AerospikeExp

(static) min() → {AerospikeExp}

Description:

  • Create expression that returns the minimum value in a variable number of expressions. All arguments must be the same type (integer or float). Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
... AerospikeExp

Variable number of integer or float expressions.
Returns:

integer or float value

Type
AerospikeExp

(static) mod() → {AerospikeExp}

Description:

  • Create "modulo" (%) operator that determines the remainder of "numerator" divided by "denominator". All arguments must resolve to integers. Requires server version 5.6.0+.

Source:
Returns:

integer value

Type
AerospikeExp

(static) mul() → {AerospikeExp}

Description:

  • Create "multiply" (*) operator that applies to a variable number of expressions. Return the product of all arguments. If only one argument is supplied, return that argument. All arguments must resolve to the same type (integer or float). Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
... Array.<number>

Variable number of integer or float expressions.
Returns:

integer or float value

Type
AerospikeExp

(static) ne(left, right) → {AerospikeExp}

Description:

  • Create not equal (!=) expression.

Source:
Parameters:
Name Type Description
left number

left expression in comparison.
right number

right expression in comparison.
Returns:
  • boolean value
Type
AerospikeExp

(static) nil() → {AerospikeExp}

Description:

  • Create 'nil' value.

Source:
Returns:
Type
AerospikeExp

(static) not(expr) → {AerospikeExp}

Description:

  • Create "not" (!) operator expression.

Source:
Parameters:
Name Type Description
expr AerospikeExp

Boolean expression to negate.
Returns:
  • boolean value
Type
AerospikeExp

(static) or() → {AerospikeExp}

Description:

  • Create "or" (||) operator that applies to a variable number of expressions.

Source:
Parameters:
Name Type Description
... AerospikeExp

Variable number of boolean expressions.
Returns:
  • boolean value
Type
AerospikeExp

(static) pow(base, exponent) → {AerospikeExp}

Description:

  • Create "pow" operator that raises a "base" to the "exponent" power. All arguments must resolve to floats. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
base number

Base value.
exponent number

Exponent value.
Returns:

float value

Type
AerospikeExp

(static) recordSize() → {AerospikeExp}

Description:

  • Create expression that returns the record size. This expression usually evaluates quickly because record meta data is cached in memory. Requires server version 7.0+. This expression replaces #deviceSize and #memorySize since those older expressions are equivalent on server version 7.0+.

Source:
Returns:

integer value size of the record in Megabytes.

Type
AerospikeExp

(static) setName() → {AerospikeExp}

Description:

  • Create expression that returns record set name string. This expression usually evaluates quickly because record meta data is cached in memory.

Source:
Returns:

string value Name of the set this record belongs to.

Type
AerospikeExp

(static) sinceUpdate() → {AerospikeExp}

Description:

  • Create expression that returns milliseconds since the record was last updated. This expression usually evaluates quickly because record meta data is cached in memory.

Source:
Returns:

integer value Number of milliseconds since last updated.

Type
AerospikeExp

(static) str(value) → {AerospikeExp}

Description:

  • Create string value.

Source:
Parameters:
Name Type Description
value string

string value.
Returns:
Type
AerospikeExp

(static) sub() → {AerospikeExp}

Description:

  • Create "subtract" (-) operator that applies to a variable number of expressions. If only one argument is provided, return the negation of that argument. Otherwise, return the sum of the 2nd to Nth argument subtracted from the 1st argument. All arguments must resolve to the same type (integer or float). Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
... Array.<number>

Variable number of integer or float expressions.
Returns:

integer or float value

Type
AerospikeExp

(static) toFloat(num) → {AerospikeExp}

Description:

  • Create expression that converts an integer to a float. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
num number

Integer to convert to a float
Returns:

float value

Type
AerospikeExp

(static) toInt(num) → {AerospikeExp}

Description:

  • Create expression that converts a float to an integer. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
num number

Integer to convert to a float
Returns:

float value

Type
AerospikeExp

(static) ttl() → {AerospikeExp}

Description:

  • Create expression that returns record expiration time (time to live) in integer seconds.

Source:
Returns:

integer value Number of seconds till the record will expire, returns -1 if the record never expires.

Type
AerospikeExp

(static) uint(number) → {AerospikeExp}

Description:

  • Create 64 bit unsigned integer value.

Source:
Parameters:
Name Type Description
number number

value unsigned integer value.
Returns:
Type
AerospikeExp

(static) var(varName) → {AerospikeExp}

Description:

  • Retrieve expression value from a variable. Requires server version 5.6.0+.

Source:
Parameters:
Name Type Description
varName string

Variable name.
Returns:

value stored in variable.

Type
AerospikeExp

(static) voidTime() → {AerospikeExp}

Description:

  • Create expression that returns record expiration time expressed as 64 bit integer nanoseconds since 1970-01-01 epoch.

Source:
Returns:

integer value Expiration time in nanoseconds since 1970-01-01.

Type
AerospikeExp

(static) wildcard() → {AerospikeExp}

Description:

  • Create 'wildcard' value.

Source:
Returns:
Type
AerospikeExp