org.xcmis.search.query.plan
Enum QueryExecutionPlan.Type

java.lang.Object
  java.lang.Enum<QueryExecutionPlan.Type>
      org.xcmis.search.query.plan.QueryExecutionPlan.Type

All Implemented Interfaces:

Serializable, Comparable<QueryExecutionPlan.Type>

Enclosing class:

QueryExecutionPlan

public static enum QueryExecutionPlan.Type
extends Enum<QueryExecutionPlan.Type>

An enumeration dictating the type of plan tree nodes.

Enum Constant Summary

JOIN

LIMIT

PROJECT

SELECTOR

SORT

WHERE

Method Summary

static QueryExecutionPlan.Type	forSymbol(String symbol) Attempt to find the Type given a symbol.
String	getSymbol() Get the symbol representation of this node type.
String	toString()
static QueryExecutionPlan.Type	valueOf(String name) Returns the enum constant of this type with the specified name.
static QueryExecutionPlan.Type[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

JOIN

public static final QueryExecutionPlan.Type JOIN

SELECTOR

public static final QueryExecutionPlan.Type SELECTOR

PROJECT

public static final QueryExecutionPlan.Type PROJECT

WHERE

public static final QueryExecutionPlan.Type WHERE

SORT

public static final QueryExecutionPlan.Type SORT

LIMIT

public static final QueryExecutionPlan.Type LIMIT

Method Detail

values

public static QueryExecutionPlan.Type[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (QueryExecutionPlan.Type c : QueryExecutionPlan.Type.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static QueryExecutionPlan.Type valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getSymbol

public String getSymbol()

Get the symbol representation of this node type.

Returns:

the symbol; never null and never empty

toString

public String toString()

Overrides:

toString in class Enum<QueryExecutionPlan.Type>

See Also:

Enum.toString()

forSymbol

public static QueryExecutionPlan.Type forSymbol(String symbol)

Attempt to find the Type given a symbol. The matching is done independent of case.

Parameters:

symbol - the symbol

Returns:

the Type having the supplied symbol, or null if there is no Type with the supplied symbol

Throws:

IllegalArgumentException - if the symbol is null