com.mapr.ojai.store.impl

Class LiteralExpression

java.lang.Object

com.mapr.ojai.store.impl.Expression

com.mapr.ojai.store.impl.LiteralExpression

All Implemented Interfaces:

org.ojai.JsonString, org.ojai.Value

public class LiteralExpression
extends Expression
implements org.ojai.Value

Literal expression in a query expression tree.

Nested Class Summary

Nested classes/interfaces inherited from interface org.ojai.Value

org.ojai.Value.Type

Field Summary

Fields inherited from interface org.ojai.Value

TYPE_CODE_ARRAY, TYPE_CODE_BINARY, TYPE_CODE_BOOLEAN, TYPE_CODE_BYTE, TYPE_CODE_DATE, TYPE_CODE_DECIMAL, TYPE_CODE_DOUBLE, TYPE_CODE_FLOAT, TYPE_CODE_INT, TYPE_CODE_INTERVAL, TYPE_CODE_LONG, TYPE_CODE_MAP, TYPE_CODE_NULL, TYPE_CODE_SHORT, TYPE_CODE_STRING, TYPE_CODE_TIME, TYPE_CODE_TIMESTAMP

Constructor Summary

Constructors

Constructor and Description
LiteralExpression() Constructor for a null value.
LiteralExpression(boolean v) Constructor for a boolean value.
LiteralExpression(byte v) Constructor for a byte value.
LiteralExpression(java.nio.ByteBuffer v) Constructor for a binary value.
LiteralExpression(double v) Constructor for a double value.
LiteralExpression(float v) Constructor for a float value.
LiteralExpression(int v) Constructor for an int value.
LiteralExpression(java.util.List<java.lang.Object> v) Constructor for a list (array) value.
LiteralExpression(long v) Constructor for a long value.
LiteralExpression(java.util.Map<java.lang.String,java.lang.Object> v) Constructor for a map value.
LiteralExpression(org.ojai.types.ODate v) Constructor for a date value.
LiteralExpression(org.ojai.types.OInterval v) Constructor for an interval value.
LiteralExpression(org.ojai.types.OTime v) Constructor for a time value.
LiteralExpression(org.ojai.types.OTimestamp v) Constructor for a timestamp value.
LiteralExpression(short v) Constructor for a short value.
LiteralExpression(java.lang.String string) Constructor for a string value.

Method Summary

Modifier and Type	Method and Description
java.lang.String	asJsonString()
java.lang.String	asJsonString(org.ojai.json.JsonOptions jsonOptions)
org.ojai.DocumentReader	asReader()
void	emitSql(java.lang.StringBuilder sb, java.lang.String tableAlias) Emit this expression's contribution to the string (where clause).
java.nio.ByteBuffer	getBinary()
boolean	getBoolean()
byte	getByte()
org.ojai.types.ODate	getDate()
int	getDateAsInt()
java.math.BigDecimal	getDecimal()
double	getDouble()
float	getFloat()
int	getInt()
org.ojai.types.OInterval	getInterval()
long	getIntervalAsLong()
java.util.List<java.lang.Object>	getList()
java.lang.String	getLiteral() Get the literal value in a form that can be used in SQL strings.
long	getLong()
java.util.Map<java.lang.String,java.lang.Object>	getMap()
java.lang.Object	getObject()
short	getShort()
java.lang.String	getString()
org.ojai.types.OTime	getTime()
int	getTimeAsInt()
org.ojai.types.OTimestamp	getTimestamp()
long	getTimestampAsLong()
org.ojai.Value.Type	getType()
boolean	structuralEquals(Expression e) Check to see if the two expressions are equal.
int	structuralHashCode() Generate the hash code for the Expression.
void	visit(ExpressionVisitor ev) Visit this node.

Methods inherited from class com.mapr.ojai.store.impl.Expression

gatherExpressions, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

LiteralExpression

public LiteralExpression()

Constructor for a null value.

LiteralExpression

public LiteralExpression(boolean v)

Constructor for a boolean value.

Parameters:

v - the value

LiteralExpression

public LiteralExpression(int v)

Constructor for an int value.

Parameters:

v - the value

LiteralExpression

public LiteralExpression(byte v)

Constructor for a byte value.

Parameters:

v - the value

LiteralExpression

public LiteralExpression(short v)

Constructor for a short value.

Parameters:

v - the value

LiteralExpression

public LiteralExpression(long v)

Constructor for a long value.

Parameters:

v - the value

LiteralExpression

public LiteralExpression(java.lang.String string)

Constructor for a string value.

Parameters:

string - the string value

LiteralExpression

public LiteralExpression(org.ojai.types.ODate v)

Constructor for a date value.

Parameters:

v - the value

LiteralExpression

public LiteralExpression(org.ojai.types.OTime v)

Constructor for a time value.

Parameters:

v - the value

LiteralExpression

public LiteralExpression(org.ojai.types.OTimestamp v)

Constructor for a timestamp value.

Parameters:

v - the value

LiteralExpression

public LiteralExpression(org.ojai.types.OInterval v)

Constructor for an interval value.

Parameters:

v - the value

LiteralExpression

public LiteralExpression(java.nio.ByteBuffer v)

Constructor for a binary value.

Parameters:

v - the value

LiteralExpression

public LiteralExpression(double v)

Constructor for a double value.

Parameters:

v - the value

LiteralExpression

public LiteralExpression(float v)

Constructor for a float value.

Parameters:

v - the value

LiteralExpression

public LiteralExpression(java.util.Map<java.lang.String,java.lang.Object> v)

Constructor for a map value.

Parameters:

v - the value

LiteralExpression

public LiteralExpression(java.util.List<java.lang.Object> v)

Constructor for a list (array) value.

Parameters:

v - the value

Method Detail

getLiteral

public java.lang.String getLiteral()

Get the literal value in a form that can be used in SQL strings.

Returns:

the literal value, as a string

emitSql

public void emitSql(java.lang.StringBuilder sb,
                    java.lang.String tableAlias)

Description copied from class: Expression

Emit this expression's contribution to the string (where clause).

Specified by:

emitSql in class Expression

Parameters:

sb - where to write to

tableAlias - the table alias to use for field names

structuralEquals

public boolean structuralEquals(Expression e)

Description copied from class: Expression

Check to see if the two expressions are equal. Two expressions are considered equal if they have the same shape, fields, and operators, but the literal values do not need to match.

Specified by:

structuralEquals in class Expression

Parameters:

e - the other expression to compare with

structuralHashCode

public int structuralHashCode()

Description copied from class: Expression

Generate the hash code for the Expression. Note that hashCodes do not depend on the values of literals; this is to aid in finding queries that are the same except for their constants (which could be replaced with bind variables, if they were supported).

Specified by:

structuralHashCode in class Expression

Returns:

the hash code

asReader

public org.ojai.DocumentReader asReader()

Specified by:

asReader in interface org.ojai.Value

getBinary

public java.nio.ByteBuffer getBinary()

Specified by:

getBinary in interface org.ojai.Value

getBoolean

public boolean getBoolean()

Specified by:

getBoolean in interface org.ojai.Value

getByte

public byte getByte()

Specified by:

getByte in interface org.ojai.Value

getDate

public org.ojai.types.ODate getDate()

Specified by:

getDate in interface org.ojai.Value

getDateAsInt

public int getDateAsInt()

Specified by:

getDateAsInt in interface org.ojai.Value

getDecimal

public java.math.BigDecimal getDecimal()

Specified by:

getDecimal in interface org.ojai.Value

getDouble

public double getDouble()

Specified by:

getDouble in interface org.ojai.Value

getFloat

public float getFloat()

Specified by:

getFloat in interface org.ojai.Value

getInt

public int getInt()

Specified by:

getInt in interface org.ojai.Value

getInterval

public org.ojai.types.OInterval getInterval()

Specified by:

getInterval in interface org.ojai.Value

getIntervalAsLong

public long getIntervalAsLong()

Specified by:

getIntervalAsLong in interface org.ojai.Value

getList

public java.util.List<java.lang.Object> getList()

Specified by:

getList in interface org.ojai.Value

getLong

public long getLong()

Specified by:

getLong in interface org.ojai.Value

getMap

public java.util.Map<java.lang.String,java.lang.Object> getMap()

Specified by:

getMap in interface org.ojai.Value

getObject

public java.lang.Object getObject()

Specified by:

getObject in interface org.ojai.Value

getShort

public short getShort()

Specified by:

getShort in interface org.ojai.Value

getString

public java.lang.String getString()

Specified by:

getString in interface org.ojai.Value

getTime

public org.ojai.types.OTime getTime()

Specified by:

getTime in interface org.ojai.Value

getTimeAsInt

public int getTimeAsInt()

Specified by:

getTimeAsInt in interface org.ojai.Value

getTimestamp

public org.ojai.types.OTimestamp getTimestamp()

Specified by:

getTimestamp in interface org.ojai.Value

getTimestampAsLong

public long getTimestampAsLong()

Specified by:

getTimestampAsLong in interface org.ojai.Value

getType

public org.ojai.Value.Type getType()

Specified by:

getType in interface org.ojai.Value

asJsonString

public java.lang.String asJsonString()

Specified by:

asJsonString in interface org.ojai.JsonString

asJsonString

public java.lang.String asJsonString(org.ojai.json.JsonOptions jsonOptions)

Specified by:

asJsonString in interface org.ojai.JsonString

visit

public void visit(ExpressionVisitor ev)

Description copied from class: Expression

Visit this node. For nodes that have children, this will be expected to visit those in post-order.

Specified by:

visit in class Expression

Parameters:

ev - the visitor