ScalarFunction.java \
SQLFunction.java \
SQLite3Jni.java \
+ TableColumnMetadata.java \
Tester1.java \
TraceV2Callback.java \
UpdateHookCallback.java \
@Nullable OutputPointer.Bool pAutoinc
);
+ /**
+ Convenience overload which returns its results via a single
+ output object. If this function returns non-0 (error), the the
+ contents of the output object are not modified.
+ */
+ public static int sqlite3_table_column_metadata(
+ @NotNull sqlite3 db, @NotNull String zDbName,
+ @NotNull String zTableName, @NotNull String zColumnName,
+ @NotNull TableColumnMetadata out){
+ return sqlite3_table_column_metadata(
+ db, zDbName, zTableName, zColumnName,
+ out.pzDataType, out.pzCollSeq, out.pNotNull,
+ out.pPrimaryKey, out.pAutoinc);
+ }
+
+ /**
+ Convenience overload which returns the column metadata object on
+ success and null on error.
+ */
+ public static TableColumnMetadata sqlite3_table_column_metadata(
+ @NotNull sqlite3 db, @NotNull String zDbName,
+ @NotNull String zTableName, @NotNull String zColumnName){
+ final TableColumnMetadata out = new TableColumnMetadata();
+ return 0==sqlite3_table_column_metadata(
+ db, zDbName, zTableName, zColumnName, out
+ ) ? out : null;
+ }
+
@Canonical
public static native int sqlite3_threadsafe();
--- /dev/null
+/*
+** 2023-07-21
+**
+** The author disclaims copyright to this source code. In place of
+** a legal notice, here is a blessing:
+**
+** May you do good and not evil.
+** May you find forgiveness for yourself and forgive others.
+** May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni;
+
+/**
+ A wrapper object for use with sqlite3_table_column_metadata().
+ They are populated only via that interface.
+*/
+public final class TableColumnMetadata {
+ OutputPointer.Bool pNotNull = new OutputPointer.Bool();
+ OutputPointer.Bool pPrimaryKey = new OutputPointer.Bool();
+ OutputPointer.Bool pAutoinc = new OutputPointer.Bool();
+ OutputPointer.String pzCollSeq = new OutputPointer.String();
+ OutputPointer.String pzDataType = new OutputPointer.String();
+
+ public TableColumnMetadata(){
+ }
+
+ public String getDataType(){ return pzDataType.value; }
+ public String getCollation(){ return pzCollSeq.value; }
+ public boolean isNotNull(){ return pNotNull.value; }
+ public boolean isPrimaryKey(){ return pPrimaryKey.value; }
+ public boolean isAutoincrement(){ return pAutoinc.value; }
+}
affirm( bNotNull.value );
affirm( "noCase".equals(zCollSeq.value) );
affirm( "duck".equals(zDataType.value) );
+
+ final TableColumnMetadata m =
+ sqlite3_table_column_metadata(db, "main", "t", "a");
+ affirm( null != m );
+ affirm( bPrimaryKey.value == m.isPrimaryKey() );
+ affirm( bAutoinc.value == m.isAutoincrement() );
+ affirm( bNotNull.value == m.isNotNull() );
+ affirm( zCollSeq.value.equals(m.getCollation()) );
+ affirm( zDataType.value.equals(m.getDataType()) );
+
+ affirm( null == sqlite3_table_column_metadata(db, "nope", "t", "a") );
+
sqlite3_close_v2(db);
}
-C Export\ssqlite3_(db_)free_memory()\sand\ssqlite3_table_column_metadata()\sto\sJNI.\sFurther\sinternals\srenaming\sfor\sconsistency\sand\slegibility.
-D 2023-08-31T14:57:01.532
+C Add\sconvenience\soverloads\sof\sJNI\ssqlite3_table_column_metadata()\sto\ssimplify\susage.
+D 2023-08-31T15:24:46.471
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-T *sym-jni-client-data *
-T -sym-db-client-data * Cancelled\sby\sbranch.
+P 7c86aa3400ed591d38c1828f366f4b5de97954c2b301919d3f06d9c2d3d7d1f2
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U stephan
-Z c9e44a2d4b476765181f0fdc6d845bb0
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# Remove this line to create a well-formed Fossil manifest.
-7c86aa3400ed591d38c1828f366f4b5de97954c2b301919d3f06d9c2d3d7d1f2
\ No newline at end of file
+faf4e6d398f444d970be8b1364c984c67ccbc5f8a27f3aa93f05b8a8de7bec9b
\ No newline at end of file