Uses of Class
com.espertech.esper.client.soda.ExpressionBase

Packages that use ExpressionBase

Package	Description
com.espertech.esper.client.soda	This package defines the Esper statement object model.
com.espertech.esper.epl.spec	Contains EPL statement specification classes define the constructs that make up an EPL statement, such as the list of items in the select clause, the insert-into stream name and property names etc.

Uses of ExpressionBase in com.espertech.esper.client.soda

Subclasses of ExpressionBase in com.espertech.esper.client.soda

Modifier and Type	Class and Description
class	AccessProjectionExpressionBase Represents the base expression for "first", "last" and "window" aggregation functions.
class	ArithmaticExpression Arithmatic expression for addition, subtraction, multiplication, division and modulo.
class	ArrayExpression Array expression forms array results, similar to the syntax of "{element 1, element 2, ...
class	AvedevProjectionExpression Mean deviation of the (distinct) values returned by an expression.
class	AvgProjectionExpression Average of the (distinct) values returned by an expression.
class	BetweenExpression Between checks that a given value is in a range between a low endpoint and a high endpoint.
class	BitwiseOpExpression Bitwise (binary) operator for binary AND, binary OR and binary XOR.
class	CaseSwitchExpression Case-expression that acts as a switch testing a value against other values.
class	CaseWhenThenExpression Case expression that act as a when-then-else.
class	CastExpression Cast expression casts the return value of an expression to a specified type.
class	CoalesceExpression Coalesce-function which returns the first non-null value in a list of values.
class	CompareListExpression Represents a list-compare of the format "expression operator all/any (expressions)".
class	ConcatExpression Concatenation expression that concatenates the result of child expressions to the expression.
class	Conjunction Conjunction represents a logical AND allowing multiple sub-expressions to be connected by AND.
class	ConstantExpression Constant value returns a fixed value for use in expressions.
class	CountEverProjectionExpression Represents the "countever" aggregation function.
class	CountProjectionExpression Count of the (distinct) values returned by an expression, equivalent to "count(distinct property)"
class	CountStarProjectionExpression Count of (distinct) rows, equivalent to "count(*)"
class	CrontabFrequencyExpression Frequency expression for use in crontab expressions.
class	CrontabParameterExpression Parameter expression such as last/lastweek/weekday/wildcard for use in crontab expressions.
class	CrontabParameterSetExpression An expression for use in crontab provides all child expression as part of a parameter list.
class	CrontabRangeExpression Parameter expression for use in crontab expressions and representing a range.
class	CurrentEvaluationContextExpression Current execution context supplies the current expression execution context.
class	CurrentTimestampExpression Current timestamp supplies the current engine time in an expression.
class	Disjunction Disjunction represents a logical OR allowing multiple sub-expressions to be connected by OR.
class	DotExpression Dot-expresson is for use in "(inner_expression).dot_expression".
class	ExpressionPlaceholder For use in expression as a placeholder to represent its child nodes.
class	FirstEverProjectionExpression Represents the "firstever" aggregation function.
class	FirstProjectionExpression Represents the "first" aggregation function.
class	GroupingExpression Grouping-function for use with rollup, cube or grouping sets.
class	GroupingIdExpression Grouping_id-function for use with rollup, cube or grouping sets.
class	InExpression In-expresson checks that a value is in (or not in) a set of values, equivalent to the syntax "color in ('red', 'blue')".
class	InstanceOfExpression Instance-of expression checks if an expression returns a certain type.
class	IStreamBuiltinExpression Returns true for insert stream and false for remove stream, same as the "istream()" builtin function.
class	Junction Base junction for conjunction (and) and disjunction (or).
class	LambdaExpression Lambda-expression is an expression of the form "parameter => body" where-in the "=>" reads as goes-to.
class	LastEverProjectionExpression Represents the "lastever" aggregation function.
class	LastProjectionExpression Represents the "last" aggregation function.
class	LikeExpression SQL-Like expression for matching '%' and '_' wildcard strings following SQL standards.
class	MaxProjectionExpression Maximum of the (distinct) values returned by an expression.
class	MaxRowExpression Maximum-value per-row expression (not aggregating) determines the maximum value among a set of values.
class	MedianProjectionExpression Median projection (aggregation) in the distinct and regular form.
class	MinProjectionExpression Minimum of the (distinct) values returned by an expression.
class	MinRowExpression Minimum-value per-row expression (not aggregating) determines the minimum value among a set of values.
class	NamedParameterExpression Named parameter expression of the form "name:expression" or "name:(expression, expression...)"
class	NewInstanceOperatorExpression The "new instance" operator instantiates a host language object.
class	NewOperatorExpression The "new" operator is useful to format an event or event property from a list of column names and expressions.
class	NotExpression Negates the contained-within subexpression.
class	OrderedObjectParamExpression For use in view parameter lists, this is a wrapper expression that adds an ascending or descending sort indicator to its single child expression.
class	PlugInProjectionExpression Represents a plug-in aggregation function.
class	PreviousExpression Previous function for obtaining property values of previous events.
class	PriorExpression Expression representing the prior function.
class	PropertyExistsExpression Property-exists checks if a dynamic property exists.
class	PropertyValueExpression Expression returning a property value.
class	RegExpExpression Regular expression evaluates a "regexp" regular expression.
class	RelationalOpExpression Comparison using one of the relational operators (=, !=, <, <=, >, >=, is, is not).
class	SingleRowMethodExpression Generic single-row method call consists of a method name and parameters, possibly chained.
class	StaticMethodExpression Static method call consists of a class name and method name.
class	StddevProjectionExpression Standard deviation of the (distinct) values returned by an expression.
class	StreamWildcardExpression Represents "stream.*" in for example "mystream.*"
class	SubqueryExistsExpression Exists-expression for a set of values returned by a lookup.
class	SubqueryExpression Subquery-expression returns values returned by a lookup modelled by a further EPStatementObjectModel.
class	SubqueryInExpression In-expression for a set of values returned by a lookup.
class	SubqueryQualifiedExpression Exists-expression for a set of values returned by a lookup.
class	SumProjectionExpression Sum of the (distinct) values returned by an expression.
class	TableAccessExpression Table access expression.
class	TimePeriodExpression Represent an expression
class	TypeOfExpression Type-of expression return the type name, as a string value, of the events in the stream if passing a stream name or the fragment event type if passing a property name that results in a fragment event otherwise the class simple name of the expression result or null if the expression returns a null value.
class	WildcardExpression Represents "*" in for example "last(*)"
class	WindowProjectionExpression Represents the "window" aggregation function.

Uses of ExpressionBase in com.espertech.esper.epl.spec

Subclasses of ExpressionBase in com.espertech.esper.epl.spec

Modifier and Type	Class and Description
class	SubstitutionParameterExpressionBase Substitution parameter that represents a node in an expression tree for which to supply a parameter value before statement creation time.
class	SubstitutionParameterExpressionIndexed
class	SubstitutionParameterExpressionNamed