com.foundationdb.sql.parser

Class ExtractOperatorNode

java.lang.Object

com.foundationdb.sql.parser.QueryTreeNode

com.foundationdb.sql.parser.ValueNode

com.foundationdb.sql.parser.UnaryOperatorNode

com.foundationdb.sql.parser.ExtractOperatorNode

All Implemented Interfaces:

Visitable

public class ExtractOperatorNode
extends UnaryOperatorNode

This node represents a unary extract operator, used to extract a field from a date/time. The field value is returned as an integer.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ExtractOperatorNode.Field

Field Summary

Fields inherited from class com.foundationdb.sql.parser.UnaryOperatorNode

methodName, operator, receiverInterfaceType, resultInterfaceType

Fields inherited from class com.foundationdb.sql.parser.QueryTreeNode

AUTOINCREMENT_CREATE_MODIFY, AUTOINCREMENT_INC_INDEX, AUTOINCREMENT_IS_AUTOINCREMENT_INDEX, AUTOINCREMENT_START_INDEX

Constructor Summary

Constructors

Constructor and Description
ExtractOperatorNode()

Method Summary

Methods

Modifier and Type	Method and Description
void	copyFrom(QueryTreeNode node) Fill this node with a deep copy of the given node.
void	init(Object field, Object operand) Initializer for a ExtractOperatorNode
String	toString() Convert this object to a String.

Methods inherited from class com.foundationdb.sql.parser.UnaryOperatorNode

getMethodName, getOperand, getOperator, init, init, isEquivalent, printSubNodes, setOperand

Methods inherited from class com.foundationdb.sql.parser.ValueNode

getColumnName, getSchemaName, getSourceResultColumn, getTableName, getType, getTypeId, init, isBinaryEqualsOperatorNode, isBooleanFalse, isBooleanTrue, isConstantExpression, isInListProbeNode, isParameterNode, isRelationalOperator, isSameNodeType, setNullability, setType

Methods inherited from class com.foundationdb.sql.parser.QueryTreeNode

accept, convertDefaultNode, debugFlush, debugPrint, formatNodeString, getBeginOffset, getDebugOutput, getEndOffset, getNodeFactory, getNodeType, getNullNode, getParserContext, getStatementType, getUserData, init, init, init, init, init, init, init, init, init, init, isInstanceOf, makeTableName, makeTableName, nodeHeader, printLabel, setBeginOffset, setDebugOutput, setEndOffset, setNodeType, setParserContext, setUserData, stackPrint, treePrint, treePrint, treePrint

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtractOperatorNode

public ExtractOperatorNode()

Method Detail

init

public void init(Object field,
        Object operand)
          throws StandardException

Initializer for a ExtractOperatorNode

Overrides:

init in class QueryTreeNode

Parameters:

field - The field to extract

operand - The operand

Throws:

StandardException - Thrown on error

copyFrom

public void copyFrom(QueryTreeNode node)
              throws StandardException

Fill this node with a deep copy of the given node.

Overrides:

copyFrom in class UnaryOperatorNode

Throws:

StandardException

toString

public String toString()

Description copied from class: UnaryOperatorNode

Convert this object to a String. See comments in QueryTreeNode.java for how this should be done for tree printing.

Overrides:

toString in class UnaryOperatorNode

Returns:

This object as a String