Package org.geotools.data.hana
Class HanaFilterToSQL
Object
FilterToSQL
PreparedFilterToSQL
HanaFilterToSQL
- All Implemented Interfaces:
ExpressionVisitor
,FilterVisitor
A filter-to-SQL converter for SAP HANA.
- Author:
- Stefan Uhrig, SAP SE
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Nested Class Summary
Nested classes/interfaces inherited from class FilterToSQL
FilterToSQL.FieldEncoder
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Field Summary
Fields inherited from class PreparedFilterToSQL
descriptors, dialect, dimensions, literalTypes, literalValues, SRIDs
Fields inherited from class FilterToSQL
capabilities, currentDimension, currentGeometry, currentSRID, databaseSchema, encodingFunction, escapeBackslash, featureType, fieldEncoder, filterFactory, inEncodingEnabled, inline, IO_ERROR, LOGGER, out, primaryKey, sqlNameEscape
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Constructor Summary
ConstructorsConstructorDescriptionHanaFilterToSQL
(PreparedStatementSQLDialect dialect, boolean functionEncodingEnabled, HanaVersion hanaVersion) -
Method Summary
Modifier and TypeMethodDescriptionprotected FilterCapabilities
Sets the capabilities of this filter.Writes sql for a function expression.protected Object
visitBinarySpatialOperator
(BinarySpatialOperator filter, Expression e1, Expression e2, Object extraData) Handles the more general case of two generic expressions.protected Object
visitBinarySpatialOperator
(BinarySpatialOperator filter, PropertyName property, Literal geometry, boolean swapped, Object extraData) Handles the common case of a PropertyName,Literal geometry binary spatial operator.protected void
visitLiteralGeometry
(Literal expression) Subclasses must implement this method in order to encode geometry filters according to the specific database implementationMethods inherited from class PreparedFilterToSQL
convertEnvelopeToPolygon, getDescriptors, getDimensions, getLiteralTypes, getLiteralValues, getSRIDs, isPrepareEnabled, setPrepareEnabled, visit, visit
Methods inherited from class FilterToSQL
cast, encode, encode, encodeBinaryComparisonOperator, encodeToString, encodeToString, escapeLiteral, escapeName, evaluateLiteral, getCapabilities, getDatabaseSchema, getDistanceInNativeUnits, getExpressionType, getFeatureType, getFunctionName, getFunctionReturnType, getParameter, getPrimaryKey, getSqlNameEscape, isBinaryExpression, isEscapeBackslash, isInEncodingEnabled, processLikeLeftOperand, setCapabilities, setDatabaseSchema, setEscapeBackslash, setFeatureType, setFieldEncoder, setInEncodingEnabled, setInline, setPrimaryKey, setSqlNameEscape, setWriter, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visitBinaryComparisonOperator, visitBinarySpatialOperator, visitBinaryTemporalOperator, visitBinaryTemporalOperator, visitBinaryTemporalOperator, visitInFunction, visitLiteralTimePeriod, visitNullFilter, writeBinaryExpression, writeBinaryExpressionMember, writeLiteral
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Constructor Details
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HanaFilterToSQL
public HanaFilterToSQL(PreparedStatementSQLDialect dialect, boolean functionEncodingEnabled, HanaVersion hanaVersion)
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Method Details
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createFilterCapabilities
Description copied from class:FilterToSQL
Sets the capabilities of this filter.- Overrides:
createFilterCapabilities
in classFilterToSQL
- Returns:
- FilterCapabilities for this Filter
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visitBinarySpatialOperator
protected Object visitBinarySpatialOperator(BinarySpatialOperator filter, PropertyName property, Literal geometry, boolean swapped, Object extraData) Description copied from class:FilterToSQL
Handles the common case of a PropertyName,Literal geometry binary spatial operator.- Overrides:
visitBinarySpatialOperator
in classFilterToSQL
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visitBinarySpatialOperator
protected Object visitBinarySpatialOperator(BinarySpatialOperator filter, Expression e1, Expression e2, Object extraData) Description copied from class:FilterToSQL
Handles the more general case of two generic expressions.The most common case is two PropertyName expressions, which happens during a spatial join.
- Overrides:
visitBinarySpatialOperator
in classFilterToSQL
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visitLiteralGeometry
Description copied from class:FilterToSQL
Subclasses must implement this method in order to encode geometry filters according to the specific database implementation- Overrides:
visitLiteralGeometry
in classFilterToSQL
- Throws:
IOException
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visit
Description copied from class:FilterToSQL
Writes sql for a function expression. By default it will write the call by using the same arguments provided to the GeoTools function, subclasses should override on a case by case basis if this behavior is not the desired one.- Specified by:
visit
in interfaceExpressionVisitor
- Overrides:
visit
in classFilterToSQL
- Parameters:
function
- a function expression- Throws:
RuntimeException
- If an IO error occurs.- See Also:
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