org.apache.calcite.adapter.enumerable

Class RexImpTable

java.lang.Object

org.apache.calcite.adapter.enumerable.RexImpTable

public class RexImpTable
extends Object

Contains implementations of Rex operators as Java code.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RexImpTable.LagImplementor Implementor for the LAG windowed aggregate function.
static class	RexImpTable.LeadImplementor Implementor for the LEAD windowed aggregate function.
static class	RexImpTable.NullAs Strategy what an operator should return if one of its arguments is null.
static class	RexImpTable.UserDefinedAggReflectiveImplementor Implementor for user-defined aggregate functions.

Field Summary

Fields

Modifier and Type	Field and Description
static MemberExpression	BOXED_FALSE_EXPR
static MemberExpression	BOXED_TRUE_EXPR
static ConstantExpression	FALSE_EXPR
static RexImpTable	INSTANCE
static ConstantExpression	NULL_EXPR
static ConstantExpression	TRUE_EXPR

Method Summary

Methods

Modifier and Type	Method and Description
static CallImplementor	createImplementor(NotNullImplementor implementor, NullPolicy nullPolicy, boolean harmonize)
AggImplementor	get(SqlAggFunction aggregation, boolean forWindowAggregate)
CallImplementor	get(SqlOperator operator)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NULL_EXPR

public static final ConstantExpression NULL_EXPR

FALSE_EXPR

public static final ConstantExpression FALSE_EXPR

TRUE_EXPR

public static final ConstantExpression TRUE_EXPR

BOXED_FALSE_EXPR

public static final MemberExpression BOXED_FALSE_EXPR

BOXED_TRUE_EXPR

public static final MemberExpression BOXED_TRUE_EXPR

INSTANCE

public static final RexImpTable INSTANCE

Method Detail

createImplementor

public static CallImplementor createImplementor(NotNullImplementor implementor,
                                NullPolicy nullPolicy,
                                boolean harmonize)

get

public CallImplementor get(SqlOperator operator)

get

public AggImplementor get(SqlAggFunction aggregation,
                 boolean forWindowAggregate)