Package org.apache.drill.exec.store.mongo

Class MongoFilterBuilder

java.lang.Object

org.apache.drill.common.expression.visitors.AbstractExprVisitor<org.bson.Document,Void,RuntimeException>

org.apache.drill.exec.store.mongo.MongoFilterBuilder

All Implemented Interfaces:

ExprVisitor<org.bson.Document,Void,RuntimeException>, DrillMongoConstants

public class MongoFilterBuilder
extends AbstractExprVisitor<org.bson.Document,Void,RuntimeException>
implements DrillMongoConstants

Field Summary

Fields inherited from interface org.apache.drill.exec.store.mongo.DrillMongoConstants

CHUNKS, CONFIG, COUNT, DATABASES, HOST, ID, MAX, MIN, NS, PARTITIONED, PASSWORD_CONFIG_SUFFIX, PRIMARY, SHARD, SHARDS, SIZE, STORE_CONFIG_PREFIX, SYS_STORE_PROVIDER_MONGO_URL, USERNAME_CONFIG_SUFFIX

Constructor Summary

Constructors

Constructor	Description
MongoFilterBuilder(LogicalExpression conditionExp)

Method Summary

Modifier and Type	Method	Description
boolean	isAllExpressionsConverted()
org.bson.Document	parseTree()
org.bson.Document	visitBooleanOperator(BooleanOperator op, Void value)
org.bson.Document	visitFunctionCall(FunctionCall call, Void value)
org.bson.Document	visitUnknown(LogicalExpression e, Void value)	Handles implementation-specific expressions not known to the visitor structure.

Methods inherited from class org.apache.drill.common.expression.visitors.AbstractExprVisitor

visitAnyValueExpression, visitBooleanConstant, visitCastExpression, visitConvertExpression, visitDateConstant, visitDecimal18Constant, visitDecimal28Constant, visitDecimal38Constant, visitDecimal9Constant, visitDoubleConstant, visitFloatConstant, visitFunctionHolderExpression, visitIfExpression, visitIntConstant, visitIntervalDayConstant, visitIntervalYearConstant, visitLongConstant, visitNullConstant, visitNullExpression, visitParameter, visitQuotedStringConstant, visitSchemaPath, visitTimeConstant, visitTimeStampConstant, visitTypedFieldExpr, visitVarDecimalConstant

Methods inherited from class java.lang.Object

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

Constructor Details

MongoFilterBuilder

public MongoFilterBuilder(LogicalExpression conditionExp)

Method Details

parseTree

public org.bson.Document parseTree()

isAllExpressionsConverted

public boolean isAllExpressionsConverted()

visitUnknown

public org.bson.Document visitUnknown(LogicalExpression e,
 Void value)
                               throws RuntimeException

Description copied from class: AbstractExprVisitor

Handles implementation-specific expressions not known to the visitor structure. Since there are no "visitFoo" methods for these "unknown" expressions, subclassses should use the functionally-equivalent instanceof approach to parse out these "unknown" expressions.

Specified by:

visitUnknown in interface ExprVisitor<org.bson.Document,Void,RuntimeException>

Overrides:

visitUnknown in class AbstractExprVisitor<org.bson.Document,Void,RuntimeException>

Throws:

RuntimeException

visitBooleanOperator

public org.bson.Document visitBooleanOperator(BooleanOperator op,
 Void value)

Specified by:

visitBooleanOperator in interface ExprVisitor<org.bson.Document,Void,RuntimeException>

Overrides:

visitBooleanOperator in class AbstractExprVisitor<org.bson.Document,Void,RuntimeException>

visitFunctionCall

public org.bson.Document visitFunctionCall(FunctionCall call,
 Void value)
                                    throws RuntimeException

Specified by:

visitFunctionCall in interface ExprVisitor<org.bson.Document,Void,RuntimeException>

Overrides:

visitFunctionCall in class AbstractExprVisitor<org.bson.Document,Void,RuntimeException>

Throws:

RuntimeException