Class B
- java.lang.Object
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- com.amazonaws.services.dynamodbv2.xspec.Operand
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- com.amazonaws.services.dynamodbv2.xspec.PathOperand
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- com.amazonaws.services.dynamodbv2.xspec.B
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@Beta public final class B extends PathOperand
A path operand that refers to a binary attribute in DynamoDB; used for building expressions.Use
ExpressionSpecBuilder.B(String)
to instantiate this class.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description ComparatorCondition
eq(byte[] value)
Returns a comparator condition (that evaluates to true if the attribute value referred to by this path operand is equal to the specified value) for building condition expression.ComparatorCondition
eq(B that)
Returns a comparator condition (that evaluates to true if the value of the current attribute is equal to that of the specified attribute) for building condition expression.ComparatorCondition
eq(ByteBuffer value)
Returns a comparator condition (that evaluates to true if the value of the current attribute is equal to the specified value) for building condition expression.IfNotExistsFunction<B>
ifNotExists(byte[] defaultValue)
Returns anIfNotExists
object which represents an if_not_exists(path, operand) function call where path refers to that of the current path operand; used for building expressions.IfNotExistsFunction<B>
ifNotExists(B defaultValue)
Returns anIfNotExists
object which represents an if_not_exists(path, operand) function call where path refers to that of the current path operand; used for building expressions.IfNotExistsFunction<B>
ifNotExists(ByteBuffer defaultValue)
Returns anIfNotExists
object which represents an if_not_exists(path, operand) function call where path refers to that of the current path operand; used for building expressions.InCondition
in(byte[]... values)
Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the specified values) for building condition expression.InCondition
in(ByteBuffer... values)
Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the specified values) for building condition expression.InCondition
inByteBufferList(List<ByteBuffer> values)
Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the values in the specified list) for building condition expression.InCondition
inBytesList(List<byte[]> values)
Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the values in the specified list) for building condition expression.ComparatorCondition
ne(byte[] value)
Returns a comparator condition (that evaluates to true if the attribute value referred to by this path operand is not equal to that of the specified path operand) for building condition expression.ComparatorCondition
ne(B that)
Returns a comparator condition (that evaluates to true if the value of the current attribute is not equal to that of the specified attribute) for building condition expression.ComparatorCondition
ne(ByteBuffer value)
Returns a comparator condition (that evaluates to true if the value of the current attribute is not equal to the specified value) for building condition expression.SetAction
set(byte[] value)
Returns aSetAction
object used for building update expression.SetAction
set(B source)
Returns aSetAction
object used for building update expression.SetAction
set(IfNotExistsFunction<B> ifNotExistsFunction)
Returns aSetAction
object used for building update expression.SetAction
set(ByteBuffer value)
Returns aSetAction
object used for building update expression.
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Method Detail
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in
public InCondition in(ByteBuffer... values)
Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the specified values) for building condition expression.- Parameters:
values
- specified values. The number of values must be at least one and at most 100.
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in
public InCondition in(byte[]... values)
Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the specified values) for building condition expression.- Parameters:
values
- specified values. The number of values must be at least one and at most 100.
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inByteBufferList
public InCondition inByteBufferList(List<ByteBuffer> values)
Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the values in the specified list) for building condition expression.- Parameters:
values
- specified list of values. The number of values must be at least one and at most 100.
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inBytesList
public InCondition inBytesList(List<byte[]> values)
Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the values in the specified list) for building condition expression.- Parameters:
values
- specified list of values. The number of values must be at least one and at most 100.
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eq
public ComparatorCondition eq(B that)
Returns a comparator condition (that evaluates to true if the value of the current attribute is equal to that of the specified attribute) for building condition expression.
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eq
public ComparatorCondition eq(ByteBuffer value)
Returns a comparator condition (that evaluates to true if the value of the current attribute is equal to the specified value) for building condition expression.
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ne
public ComparatorCondition ne(B that)
Returns a comparator condition (that evaluates to true if the value of the current attribute is not equal to that of the specified attribute) for building condition expression.
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ne
public ComparatorCondition ne(ByteBuffer value)
Returns a comparator condition (that evaluates to true if the value of the current attribute is not equal to the specified value) for building condition expression.
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ifNotExists
public IfNotExistsFunction<B> ifNotExists(ByteBuffer defaultValue)
Returns anIfNotExists
object which represents an if_not_exists(path, operand) function call where path refers to that of the current path operand; used for building expressions."if_not_exists (path, operand) – If the item does not contain an attribute at the specified path, then if_not_exists evaluates to operand; otherwise, it evaluates to path. You can use this function to avoid overwriting an attribute already present in the item."
- Parameters:
defaultValue
- the default value that will be used as the operand to the if_not_exists function call.
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ifNotExists
public IfNotExistsFunction<B> ifNotExists(B defaultValue)
Returns anIfNotExists
object which represents an if_not_exists(path, operand) function call where path refers to that of the current path operand; used for building expressions."if_not_exists (path, operand) – If the item does not contain an attribute at the specified path, then if_not_exists evaluates to operand; otherwise, it evaluates to path. You can use this function to avoid overwriting an attribute already present in the item."
- Parameters:
defaultValue
- the default value (of another binary attribute) that will be used as the operand to the if_not_exists function call.
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set
public SetAction set(B source)
Returns aSetAction
object used for building update expression. If the attribute referred to by this path operand doesn't exist, the returned object represents adding the attribute value of the specified source path operand to an item. If the current attribute already exists, the returned object represents the value replacement of the current attribute by the attribute value of the specified source path operand.
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set
public SetAction set(ByteBuffer value)
Returns aSetAction
object used for building update expression. If the attribute referred to by this path operand doesn't exist, the returned object represents adding the specified value as an attribute to an item. If the attribute referred to by this path operand already exists, the returned object represents the value replacement of the current attribute by the specified value.
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set
public SetAction set(byte[] value)
Returns aSetAction
object used for building update expression. If the attribute referred to by this path operand doesn't exist, the returned object represents adding the specified value as an attribute to an item. If the attribute referred to by this path operand already exists, the returned object represents the value replacement of the current attribute by the specified value.
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set
public SetAction set(IfNotExistsFunction<B> ifNotExistsFunction)
Returns aSetAction
object used for building update expression. If the attribute referred to by this path operand doesn't exist, the returned object represents adding the value of evaluating the specifiedIfNotExists
function as an attribute to an item. If the attribute referred to by this path operand already exists, the returned object represents the value replacement of the current attribute by the value of evaluating the specifiedIfNotExists
function.
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eq
public ComparatorCondition eq(byte[] value)
Returns a comparator condition (that evaluates to true if the attribute value referred to by this path operand is equal to the specified value) for building condition expression.
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ne
public ComparatorCondition ne(byte[] value)
Returns a comparator condition (that evaluates to true if the attribute value referred to by this path operand is not equal to that of the specified path operand) for building condition expression.
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ifNotExists
public IfNotExistsFunction<B> ifNotExists(byte[] defaultValue)
Returns anIfNotExists
object which represents an if_not_exists(path, operand) function call where path refers to that of the current path operand; used for building expressions."if_not_exists (path, operand) – If the item does not contain an attribute at the specified path, then if_not_exists evaluates to operand; otherwise, it evaluates to path. You can use this function to avoid overwriting an attribute already present in the item."
- Parameters:
defaultValue
- the default value that will be used as the operand to the if_not_exists function call.
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